How many different Youtube videos are possible?

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  • čas přidán 26. 07. 2016
  • Download the podcast of my BBC Radio4 show, Domestic Science (Ep1) www.bbc.co.uk/programmes/p02pc...
    In this video I start with how many 256×256 greyscale images are possible and work my way up to the maximum number of possible CZcams videos.
    Original question on twitter:
    / 755799688759037953
    Here is our radio show on the BBC radio player. Let me know if it does not work for you.
    www.bbc.co.uk/programmes/b07lx...
    Our Festival of the Spoken Nerd DVD and download:
    shop.festivalofthespokennerd....
    Galaxy M81 image credit: NASA/JPL-Caltech/ESA/Harvard-Smithsonian CfA
    Music by Howard Carter
    Design by Simon Wright
    MATT PARKER: Stand-up Mathematician
    Website: standupmaths.com/
    Maths book: makeanddo4D.com/
    Nerdy maths toys: mathsgear.co.uk/
  • Zábava

Komentáře • 2,1K

  • @ykl1277
    @ykl1277 Před 8 lety +446

    using universe to do base 10^82 calculation. That is ingenious.

    • @standupmaths
      @standupmaths  Před 8 lety +119

      +YK L Hopefully it will catch on! I like to think big.

    • @robbert-janmerk6783
      @robbert-janmerk6783 Před 3 lety +21

      @@standupmaths "Um boss, I like to have a small salary increase, how about a universe?"

  • @Verlisify
    @Verlisify Před 8 lety +1750

    "I'm writing it in base universe" maybe the greatest line ever spoken

  • @dvdossbsvskfbdvav
    @dvdossbsvskfbdvav Před 7 lety +152

    So there's a 1 in 2^524288 chance of generating that lovely face
    I needed to know that

    • @rubenspooky
      @rubenspooky Před 7 lety +28

      imawhale actually there will be a picture of every person in the universe and some porn as well

    • @Kokurorokuko
      @Kokurorokuko Před 4 lety +5

      @@rubenspooky Also some small codes and passwords

    • @Kokurorokuko
      @Kokurorokuko Před 4 lety +4

      Or even big ones, if you encrypt them in binary

    • @RodelIturalde
      @RodelIturalde Před 3 lety +2

      So there is a chance.

    • @samcousins3204
      @samcousins3204 Před 3 lety +1

      @@Kokurorokuko why encrypt them in binary? theyre already encrypted in 256-ary, just use that

  • @megalofyia9280
    @megalofyia9280 Před 7 lety +50

    Every time a mathematician brings up the age of the universe, you know things are about to get a little crazy

  • @nerdbot4446
    @nerdbot4446 Před 8 lety +763

    If you generate all possible CZcams Videos, make sure you set the MPEG compression to max. This can easily save you a few universes of storage

    • @dsman115276
      @dsman115276 Před 8 lety +79

      I realize this is a joke, but that actually wouldn't matter. Most of these videos would just be filled with random data, and random data doesn't generally compress.

    • @cetyl2626
      @cetyl2626 Před 8 lety +19

      +dsman115276 OR is it random? If you went about generating the videos in a sequence and knew which number of video you were on you'd know about the difference between the video next and before you, etc... which sounds a lot like the principal that mpeg compression is based on..

    • @dsman115276
      @dsman115276 Před 8 lety +18

      Having every video in existence means you have every possible combination of 0's and 1's that forms a video, making it impossible to apply a generic compression algorithm per-video that would result in a net-loss of total data. My comment was specifically about MPEG compression, which is per-video.
      What you described could work, but it is not a per-video compression algorithm. Without extra data, you could not immediately find and start playing any video from the list. If you wanted to play video 1,000,204 you would have to go through the first 1,000,203 to calculate what it should be. Because of this, the techniques are not equivalent.

    • @ollssllo
      @ollssllo Před 8 lety +7

      Also he was using the file size as the upper bound, which includes the compression

    • @rich1051414
      @rich1051414 Před 8 lety +3

      It would not be filled with random data, it would be filled with all data, eventually, so only a few would actually not be compressible. There would be a LOT of redundant data iterating through all possibilities. Regardless, the time is the factor here, not the storage.

  • @Zejgar
    @Zejgar Před 8 lety +769

    4:23
    Matt Parker put himself in a square!
    Must resist reference!

    • @ElchiKing
      @ElchiKing Před 8 lety +21

      But you didn't. Also I didn't

    • @mrWade101
      @mrWade101 Před 8 lety +39

      he did. He didn't say Parker square!

    • @ElchiKing
      @ElchiKing Před 8 lety +22

      Ludvig SC Games But he made an implicit reference. It still _is_ a reference. (Also the post contains the words "Parker" and "square")

    • @Zejgar
      @Zejgar Před 8 lety +81

      Yeah, I apologize, that was a real Parker square on my part.

    • @FeeblePenguin
      @FeeblePenguin Před 8 lety +9

      +Zejgar hahaha :) yeah a real parker square moment

  • @thomasr.jackson2940
    @thomasr.jackson2940 Před 8 lety +36

    The Library of Babel is currently updating their digital services to include CZcams. Instructions for accessing their digital services database are conveniently located in the conventional bound book collection, with multiple copies in every language, spaced throughout the library for the convenience of the patrons.

  • @OrdwaysChannel
    @OrdwaysChannel Před 8 lety +465

    256 Shades of Gray, Sounds like a terrible novel to me.

    • @daisybrain9423
      @daisybrain9423 Před 5 lety +29

      50 Shades of Grey sounds like an even more terrible novel to me.

    • @1e1001
      @1e1001 Před 5 lety +20

      4 shades of off-green would be even worse

    • @peterbonnema8913
      @peterbonnema8913 Před 4 lety +8

      It leaves enough room for a sequal "The Next 50 Shades of Grey"

    • @otesunki
      @otesunki Před 3 lety +3

      @@1e1001 1 shade of white is even worse

    • @alexanderjoseph5380
      @alexanderjoseph5380 Před 3 lety +4

      @@otesunki 0 shades of infrared is even worse

  • @lagmaster102
    @lagmaster102 Před 8 lety +450

    if you were in posession of all possible greyscale 256x256 images, you would have literally a picture of everything: a portrait representation of yourself as you would be 10, 15, 20, 25, x number of years from now, all past present and future government secrets, exclusive shots of hitler's mustache from millions of different angles, visual depictions of every all alien race currently in existence in our universe, and matt parker doing a handstand while balancing two bananas on the soles of his feet... you name it. all to the accuracy that a 256x256 image can provide (in grayscale) which can be pretty crisp depending on the zoom.
    good luck storing that. even if you had access all the materials in the galaxy at your disposal solely to manufacture hard drives.

    • @greenscreamyeet7966
      @greenscreamyeet7966 Před 5 lety +22

      It’s been 2 years and this man still has 4 likes

    • @WillBentinck
      @WillBentinck Před 4 lety +2

      @@greenscreamyeet7966 +1 like, wish I could add more

    • @greenscreamyeet7966
      @greenscreamyeet7966 Před 4 lety +4

      It’s been 3 and this man still has seven likes

    • @wernergraff
      @wernergraff Před 4 lety +29

      Make it 8 ...
      ... actually you would not be confined to the 256x256 resolution. you might just take the images which are tiles of e.g. Parkers handstand+bananas in 4K resolution and add together the whole 4K image (even in color if you happen to find R, G and B tiles). You would even find images of that exact banana skin in electron microscopy resolution.
      There would also be all images of the blueprints needed to build that super computer :-)

    • @hamiltonianpathondodecahed5236
  • @romanr9883
    @romanr9883 Před 8 lety +933

    isnt it facinating that you can program a computer to randomly fill all pixels of a 256x256 square image with 1 of 256 different shades of grey and if you only wait long enough it would output matt parkers smiling face

  • @stephenj9470
    @stephenj9470 Před rokem +2

    That was one of the clearest explanations of a massively large number I've ever seen.

  • @cosmicjenny4508
    @cosmicjenny4508 Před 7 lety +51

    _256 Shades of Matt_

    • @jensei
      @jensei Před 5 lety

      That could make a great book

  • @justcarcrazy
    @justcarcrazy Před 8 lety +11

    "...a documentary ...indicating there were a different number of 'Shades of Grey...'" Classic.

  • @petriksalovaara2805
    @petriksalovaara2805 Před 7 lety +66

    While there are indeed 256^65536 possible combinations of grayscale pixels in a 256x256 matrix, not all of them produce a unique image, since 3/4 of them are just 90, 180 or 270 degrees rotated versions of the same image. And half of the remaining unique images are just a vertically mirrored version. And half of those are just a horizontally mirrored version.
    Furthermore, if we could somehow predict which percentage of the images are just static noise containing no visually meaningful information, the number of unique images would drop drastically. Adding a noise-cancelling algorithm to detect that image B is essentially the same as image A with a bit of noise on top would narrow down even more.
    Of course, for any of this to be of any help, the nature of these algorithms would have to be fully predictive so that we would somehow know which images to skip before creating them.
    Question: what is the propability, that given these modifications, we could build a supercomputer which would be capable of producing all the possible visually meaningful images in our universe in less amount of time it has existed?

    • @user-fd6bd2hk1p
      @user-fd6bd2hk1p Před 7 lety +1

      Petrik Salovaara 1. You can rotate images in much more angles, subpixel even. 2. You can avoid noise problem by droping definition down, but even 10x10@1bpp gives thausands times more variants than drops in ocean.

    • @RaimarLunardi
      @RaimarLunardi Před 6 lety +2

      does the ocean have less than 10000 drops of water? 10x10 = 100... 100^2 = 10000

    • @JorgetePanete
      @JorgetePanete Před 6 lety

      Petrik Salovaara probability*

    • @zsstupidvideos6780
      @zsstupidvideos6780 Před 6 lety +6

      "visually meaningful" would become subjective. Perspective is a thing, it can change the viewing of something that is technically the same

    • @Philafxs
      @Philafxs Před 6 lety +3

      Raimar Lunardi Arguably, yes. The ocean is not made out of drops of water. And arguably, when ocean water forms a drop, it's no longer part of the ocean.

  • @Richard_is_cool
    @Richard_is_cool Před 7 lety +205

    4:25 One pixel is missing from that square. You know what almost perfect squares are called?

  • @SimpleAmadeus
    @SimpleAmadeus Před 7 lety +36

    So perhaps the reason the multiverse exists is to satisfy someone's desire to generate every possible CZcams video?

  • @littlepro01games
    @littlepro01games Před 8 lety +10

    I was like "Oh, 'now' is a while ago..." but then I realized that I watched this video when it went up.

  • @cambrown5633
    @cambrown5633 Před 7 lety +47

    Did you just trick me into counting in base-universe?

  • @red13emerald
    @red13emerald Před 8 lety +347

    6:42 I thought I was very clever and wrote a small program that is searching for another power of 2 that doesn't have 1, 2, 4 nor 8 in it. It's been running for 2 hours now. Is there any proof that such a number doesn't exist?

    • @standupmaths
      @standupmaths  Před 8 lety +189

      +red13emerald I believe there is at least one more, but it's a long way up.

    • @nevilletomatos3804
      @nevilletomatos3804 Před 8 lety +53

      I'm curious whether 2048 is the highest power of 2 with only even digits. Proving or disproving that would be tricky

    • @nevilletomatos3804
      @nevilletomatos3804 Před 8 lety +276

      I found one: 0.5
      I'll get my coat

    • @tohfawalker159
      @tohfawalker159 Před 8 lety +46

      mine has been running for the last 9 hours and has reached 16^280000 and not found another one yet.

    • @tohfawalker159
      @tohfawalker159 Před 8 lety +56

      16 hours in and i am at 16^370000 and taking nearly 40 seconds to go between 16^370000 and 16^370100

  • @JBLewis
    @JBLewis Před 8 lety +36

    From the title I was expecting a reference to combinations of the CZcams video ID tag, perhaps in reference to Tom Scott's (semi)recent video.

    • @standupmaths
      @standupmaths  Před 8 lety +11

      +JB “AspenForester” Lewis Always enjoy Tom's videos. This was my way of looking at the possible videos, not just the max which can exist at once.

    • @JBLewis
      @JBLewis Před 8 lety +2

      Don't get me wrong, I thoroughly enjoyed the video, as always!

    • @carlmmii
      @carlmmii Před 8 lety +1

      Something tells me youtube's hashing algorithm will have to evolve to account for 29,368,779.7 universes worth of content... just sayin'

    • @Robertlavigne1
      @Robertlavigne1 Před 8 lety

      Google has based their business model around assuming there will eventually being extremely cheap storage, and bandwidth, so I'm assuming they have it all figured out! ;-)

  • @LoLrand0mness
    @LoLrand0mness Před 8 lety +117

    i really like base[universe] :D

    • @honorarymancunian7433
      @honorarymancunian7433 Před 8 lety +5

      My new favourite base :D

    • @LoLrand0mness
      @LoLrand0mness Před 8 lety

      *****
      i have to disagree.
      base[googolplex] is a too concrete number.
      base[universe] can be interpreted in many different ways.
      the number of smallest things in a universe (atoms? smaller particles maybe?)
      or maybe as base[all] or even as base[1] :)

  • @jesusnthedaisychain
    @jesusnthedaisychain Před 8 lety +12

    Know what else stopped around 65536? Dragon Warrior experience and gold. It's how I started figuring out how my game's data was stored when I was a kid. Experience and Gold stop at 65535 (but 0 is counted as well, giving us 65536). It was like magic to my 8-year-old mind that I could understand why my game was so limited (especially since my dad, who at that time was one of the smartest men in the world to me, akin to Einstein) couldn't understand why the numbers stopped. It's not often that an 8-year old gets to teach his dad something.
    So thank you, Ms. Trask, for your "Powers of 2" poster in math class, that has fueled my neurotic obsession with powers of 2 for the past 24 years. Thanks a bunch!

  • @13x666
    @13x666 Před 6 lety +71

    If you actually generate all possible CZcams videos, be sure to never watch them. You don't want to see some of the things that are in there...

    • @ValentineC137
      @ValentineC137 Před 4 lety +4

      I’ve already seen a cup too much of yourube

    • @Xnoob545
      @Xnoob545 Před 4 lety +9

      It will make every possible peppa pig ytp

    • @lassehoffmann625
      @lassehoffmann625 Před 3 lety +1

      Now we need to know how many of these videos would CZcams just put down if you upload them

    • @VivekYadav-ds8oz
      @VivekYadav-ds8oz Před 3 lety +3

      Why not? It'll have every yet-to-be-discovered piece of mathematics with subtitles and insanely good visuals explained by none other than Parker-Man himself.

    • @OpTubeShorts
      @OpTubeShorts Před 3 lety +1

      @@Xnoob545 lol

  • @yaschaeffer
    @yaschaeffer Před 7 lety +4

    At work we use the medical industry standard DICOM format images. Those are greyscale images of 16 bits/pixel, (ie 65536 grey levels), rather than just the 8bits/pixel (=256) assumption you start with. So there are *a lot* more possible greyscale inages. And I understand there are some 64bits/pixel formats out there.

  • @Rararawr
    @Rararawr Před 8 lety +55

    "In base universe" matt what did you even do the calculations for this episode on?

    • @U014B
      @U014B Před 8 lety +23

      Speed, probably.

    • @kaitlyn__L
      @kaitlyn__L Před 8 lety +6

      i think he compared the number of combinations of pixels to the number of atoms in the universe by simple division. the numbers are big but they're just floating point numbers. he's just walking us through a long thought process about what the scales of these numbers actually mean

    • @911gpd
      @911gpd Před 8 lety +5

      I don't think it's too complicated.
      It's only multiplications and by using powers of 10 it can even be made mostly by hand

    • @carlmmii
      @carlmmii Před 8 lety +20

      A Ga(la)xio calculator, of course.

    • @BLSXful
      @BLSXful Před 3 lety

      @@kaitlyn__L 42

  • @tommykarrick9130
    @tommykarrick9130 Před 7 lety +63

    I wanna start counting in base universe
    "That'll be 0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 dollars, please

    • @Dartnix
      @Dartnix Před 5 lety +10

      In base universe (base 10^82) numbers grow really quickly both ways, so already 0.1 in base universe is an incredibly tiny amount, funny enough pretty close to the number you wrote. :)

    • @TomGalonska
      @TomGalonska Před 3 lety +5

      I know i'm late, but 0.1 in base universe is less than 0.1 in base 10... so that's an INCREDIBLY small number you just wrote. To give you an idea how many zeros would be in the equivalent in base 10: Every 0 you wrote after the "." adds 10^82 zeros in base 10. ;) So if you add your number to itself and put 1 atom in a new universe, you would've created 138 universerses before you reach 1 (and 1 in b10 is eqaul to 1 bUniverse)

    • @BEN-ys6gu
      @BEN-ys6gu Před 3 lety

      @@TomGalonska well he clearly has modest prices

  • @littlemikey46
    @littlemikey46 Před 8 lety +3

    Loved episode 1! Can't wait for more! Thanks for making them available internationally!

  • @mow184
    @mow184 Před 5 lety +1

    Of all the videos you’ve ever made, on this channel and others, most of which I love and all of which I like, I think this is my favorite! I think it’s the atoms and universes thing, and the many nested layers of abstraction running through the entire video.

  • @HennerZeller
    @HennerZeller Před 8 lety +241

    Uhm, femtohertz would be very slow. You _meant_ femtosecond cycle time or terahertz, +standupmaths

    • @magic_cfw
      @magic_cfw Před 5 lety +2

      oof

    • @ShimshonDI
      @ShimshonDI Před 5 lety +43

      You're right about femtohertz, but 10^12 corresponds to the tera prefix. 10^15 corresponds to peta.

    • @limecyanizer4394
      @limecyanizer4394 Před 5 lety +9

      Actually it's petahertz not terahertz

    • @pranamd1
      @pranamd1 Před 5 lety +40

      I guess Matt's supercomputer has a parkerhertz clock speed.
      ....sorry. I had to.

    • @bobbycraig2583
      @bobbycraig2583 Před 3 lety +1

      @@pranamd1 The electricity is Parker Squares

  • @112BALAGE112
    @112BALAGE112 Před 8 lety +59

    it's now!

  • @bazmanj
    @bazmanj Před 8 lety

    I always enjoy whatever topic you pick, but i think its your enthusiasm that brings me back. Always look forward to a new vid.

  • @ognjentasic7537
    @ognjentasic7537 Před 5 lety +9

    13:02 IM WRITING IT IN BASE UNIVERSE hahahhaha that should be on a tshirt

  • @ChrisLuigiTails
    @ChrisLuigiTails Před 7 lety +11

    This 50 Shades reference is amazing x)

  • @CrashperM
    @CrashperM Před 8 lety +71

    team correct now! :D

  • @kentrush1547
    @kentrush1547 Před 8 lety +2

    About your comments at the end, I think creativity is almost by definition the ability to sort through the huge amount of possible video/podcasts/anythings and pick out the small, finite amount of them that are valuable and have meaning. So when you say you just made one possible podcast picked from an enormous preexisting list, you really did make a very improbably choice in choosing one that actually means anything. I'm proud of you for that!

  • @Cosmalano
    @Cosmalano Před 8 lety

    Downloaded that podcast just to be supportive of it, but it was genuinely the most enjoyable part of my entire day. Thanks for the great show.

  • @dowrow6898
    @dowrow6898 Před 8 lety +25

    asa I get home I'll make program to export all possible 256x256 images

    • @dowrow6898
      @dowrow6898 Před 8 lety +16

      watches video
      ok maybe I'll try 64x64

    • @dowrow6898
      @dowrow6898 Před 8 lety +15

      goes to claculator
      ok maybe I'll try all 32×32 3 bit grayscale images

    • @refreshfr
      @refreshfr Před 8 lety +5

      Not gonna finish either. It's 256^(64*64), which is 2^32768 possibilities, it's just insanely large.

    • @xenontesla122
      @xenontesla122 Před 8 lety +6

      That's still 2³²⁷⁶⁸ images, which has 9,863 digits...
      Even with just 2x2 every image combined gives a total of 2.1 gigabytes.

    • @sinom
      @sinom Před 8 lety

      +Dow Row nope. don't try anything above 4*4 and even that is too many (even in gray scale)

  • @andrewpurvis1754
    @andrewpurvis1754 Před 8 lety +3

    love this channel. great video!(they're always great!) it's always great to see stem in a positive light. it makes me happy when people glorify intelligence instead of stupidity

  • @stevenbonneville1045
    @stevenbonneville1045 Před 6 lety

    Awesome ! You are soo freaking smart - I love watching you every single day Matt.... and on OAOS

  • @evanl5299
    @evanl5299 Před 7 lety

    This is mind-boggling. Incredible video. You're awesome!

  • @GaryFerrao
    @GaryFerrao Před 4 lety +3

    10:25 "there's a universe i've just wiped clean". wow.

  • @rich1051414
    @rich1051414 Před 8 lety +10

    A femtohertz would be 10^-15 though... that would be really slow. 10^15 would be a Petahertz processor.

  • @prakharvel1
    @prakharvel1 Před 7 lety

    Makes my day every time i watch a standupmaths video, bloody hilarious.

  • @jakemccallum7468
    @jakemccallum7468 Před 8 lety

    This is one of your best videos!!!

  • @Ruffeep
    @Ruffeep Před 7 lety +6

    all the possible videos yet Leafy has managed to release the same video hundreds of times over

  • @mellertid
    @mellertid Před 3 lety +3

    Dang, once again I find myself in the wrong "now".

  • @hangugeohaksaeng
    @hangugeohaksaeng Před 7 lety

    Thanks Matt for a great video! I too enjoy that that "mind boggling number" is finite.

  • @CrushOfSiel
    @CrushOfSiel Před 7 lety +1

    Yay I was able to calculate the correct amount of images. Great video Matt!

  • @HeavyboxesDIYMaster
    @HeavyboxesDIYMaster Před 8 lety +17

    I was only aware of 50 shades of grey. Good to know.

    • @MegaMGstudios
      @MegaMGstudios Před 7 lety +2

      Heavyboxes DIY Master these new ones are 50 shades darker

    • @lukeoreilly464
      @lukeoreilly464 Před 6 lety

      MegaMGstudios You mean 206 shades darker :)

    • @JorgetePanete
      @JorgetePanete Před 6 lety

      Luke O'Reilly lmao you got that humour Freed

  • @ChristerEvenius
    @ChristerEvenius Před 3 lety +6

    “High in the North in a land called Svithjod there is a mountain. It is a hundred miles long and a hundred miles high and once every thousand years a little bird comes to this mountain to sharpen its beak. When the mountain has thus been worn away a single day of eternity will have passed.”
    ― Hendrik Willem Van Loon, The Story of Mankind

  • @markusbocker2027
    @markusbocker2027 Před 8 lety

    Thanks so much! Love that video! Keep up the great work!

  • @MinecraftMaker
    @MinecraftMaker Před 8 lety

    Subscribed to the podcast, and downloaded both episodes. I'm a little bit behind on CZcams watch later list, but thank Glob I'm not even one base universe behind.

  • @fr9807
    @fr9807 Před 8 lety +58

    Wouldn't a femtohertz be 10^-15 Hz instead of 10^15 Hz? A hertz is a cycle per second so a femtohertz would be 0.000 000 000 000 001 cycles per second which is absurd. A Petahertz would be more correct.

    • @uriman9502
      @uriman9502 Před 8 lety +1

      ty

    • @98danielray
      @98danielray Před 8 lety +4

      10^15 operatikns per second, which means each operation is done in 10^-15.So hes correct anyway

    • @fr9807
      @fr9807 Před 8 lety +5

      +Mr Aquiles later in the video he was right, it's just the fact he said femtohertz that is incorrect

    • @98danielray
      @98danielray Před 8 lety

      ok.Now I undestood what you meant

    • @SomeRandomFellow
      @SomeRandomFellow Před 8 lety

      thats what i was wondering

  • @2CubedTech
    @2CubedTech Před 8 lety +47

    2⁻¹ seems to work. :P

    • @finlaymcewan
      @finlaymcewan Před 8 lety +2

      Clever!

    • @finlaymcewan
      @finlaymcewan Před 8 lety +11

      ***** It's not sarcasm, he's referring to the 'dare' at 6:40 in the video

    • @outputcoupler7819
      @outputcoupler7819 Před 8 lety +5

      If you ignore the fractional form, for which every digit is a power of two.

    • @ljfaag
      @ljfaag Před 8 lety +6

      and it's the smallest one, all smaller negative powers of 2 end with 25

    • @scragar
      @scragar Před 3 lety

      As does 2^4 = 16

  • @simplynilsw
    @simplynilsw Před 7 lety

    This is crazy! Great video, thank you Matt

  • @AivoPaas
    @AivoPaas Před 7 lety

    allright, subscribed. there you go. have been lurking around long enough

  • @SuperFpac
    @SuperFpac Před 8 lety +36

    i'll be that guy. technically the total possible number of youtube videos is 73,786,976,294,838,206,464. 64^11 before they run out of video IDs.

    • @standupmaths
      @standupmaths  Před 8 lety +15

      +SuperFpac That's possible videos which can exist at once. Not total possible in theory.

    • @Luca-iq4ev
      @Luca-iq4ev Před 8 lety +1

      Tom Scott made a Video called "Will CZcams ever run out of IDs?"

    • @sugarfrosted2005
      @sugarfrosted2005 Před 8 lety

      They could just add a 64-it. With the way they select IDs they'd likely add one before that would happen. The problem is that they select them randomly, with the assumption that incidence is negligible.

    • @SuperFpac
      @SuperFpac Před 8 lety

      +Luca Kommentarkanal that's where I got the number.

    • @Luca-iq4ev
      @Luca-iq4ev Před 8 lety

      sugarfrosted They actually choose them randomly, but then the server that generated it asks every other server if it is already taken.

  • @DustinRodriguez1_0
    @DustinRodriguez1_0 Před 8 lety +11

    Now here is a follow-on question... how much prison time would you get if found guilty of copyright violation for every copyrighted image which you produced by iterating through all of the images? I'd also ask how many other crimes you would be guilty of from generating every possible otherwise illegal image (illegal pornography and the like)... but that would probably not be calculable in any reasonable way. For copyright, you could probably estimate it reasonably well. Would you be in prison for longer than the age of the universe thus far?
    WRT the number existing before the universe... unlikely. The universes fundamental structure is probabilistic. The natural numbers are not really natural, they're an artifact of the human experience of the universe. Things look definite and discrete, but those are only emergent properties of the interactions of those probabilistic particle/waves. Additionally, the idea of 'before the universe' inherently makes no sense. In order for the word "before" to have meaning, time must exist and proceed in an ordered fashion. Spacetime was created at the Big Bang, and is not causally connected to anything 'before'. Mathematics is amazingly useful for understanding some parts of our universe (it doesn't seem to like nonlinear differential equations with trillions of variables though and unfortunately that's what is necessary to model almost anything real accurately) but it's completely unrelated to it. WHY it works so well is a complete mystery. A pretty nifty one if you ask me.

  • @mathfridge
    @mathfridge Před 8 lety

    Ok. been watching for a while. I'll subscribe. :)

  • @marccowan3585
    @marccowan3585 Před 8 lety

    This video is absolutely exceptional

  • @woodenpotato7550
    @woodenpotato7550 Před 7 lety +4

    If the final number is incredibly large, you have to consider that a same set of images can have *a lot* of sets of sounds

  • @olooki
    @olooki Před 6 lety +8

    Your 4 episode BBC 4 programs are no longer available for download. Please give us a link to them. I wanna hear them!! PPLLEEAASSEE!!

    • @BertGrink
      @BertGrink Před 4 lety +1

      www.bbc.co.uk/search?filter=programmes&q=festival+of+the+spoken+nerd

  • @luigig44
    @luigig44 Před 7 lety +1

    "BBC" Oh cool, congrats!
    "BBC RADIO" Pretty good
    "BBC RADIO 4" Ok, that's still awesome
    "BBC RADIO 4 at 11:15" Is before lunchtime a good time?
    "BBC RADIO 4 at 11:15 PM" OH COME ON, they deserve more!

  • @jampot5000
    @jampot5000 Před 8 lety

    I love that you are counting in 10^82, it does sort of make it more accessible but it does mess with my head.

  • @skebess
    @skebess Před 8 lety +5

    Clearly very capable.

  • @andrewkovnat
    @andrewkovnat Před 8 lety +3

    Woo! Correct now!

  • @axeljimenez830
    @axeljimenez830 Před 8 lety

    The podcast was great and really funny! :D

  • @ugglorimossen
    @ugglorimossen Před 8 lety

    I was chewing gum while listening to Domestic Science, and started to chew in beat with the "clearly very capable"-bit. I believe that I somehow enforced the effect of that experiment (or torture), thus, I always hear "clearly very capable" when I a chewing now... Gee, thank you so much Matt Parker! (Great show though Matt!)

  • @IoEstasCedonta
    @IoEstasCedonta Před 8 lety +50

    8:01: ...I don't want a computer that runs in femtohertz.

    • @zacchon
      @zacchon Před 8 lety

      Why not?

    • @samdude278
      @samdude278 Před 8 lety +28

      +Zacchon Mat should have said Petahertz, femtohertz are what you measure incredibly slow things in like galaxies rotating, if a computer was running at 1 femtohertz it would take 10^15 seconds to do one thing

    • @supbscripter4079
      @supbscripter4079 Před 8 lety

      Zacchon did you even read the comments? :/

    • @zacchon
      @zacchon Před 8 lety +2

      samdude278 Oh that's true, thank you. I can't say I use bigger or smaller prefixes than tera or pico that often ;)

    • @zacchon
      @zacchon Před 8 lety +2

      404NameN0tF0und No, this was one of the first comments I read.

  • @antoniolewis1016
    @antoniolewis1016 Před 7 lety +4

    This is classic nerdsniping

  • @xokocodo
    @xokocodo Před 8 lety

    Subscribed to the podcast!

  • @cad97
    @cad97 Před 8 lety +2

    I like to think about it as creatives "find" a meaningful "number" among the quasi-infinite "library" of "numbers".

  • @compuholic82
    @compuholic82 Před 7 lety +5

    The number of images containing sensible objects is thankfully a lot smaller. But still, it makes you appreciate how insane the task of pattern recognition actually is. Say you are training a computer to only distinguish cats from dogs. While a lot smaller than the set of all possible images, the set of images showing all possible cats and dogs is still absolutely astronomical. And you are trying to find a function that maps this insanely large set to the correct answers. When you look at the problem in this way it is kind of amazing how well these algorithms do.

    • @mixnewton5157
      @mixnewton5157 Před rokem

      just approximations, the latent space isn't at this scale

  • @MrRoyalChicken
    @MrRoyalChicken Před 8 lety +42

    The best thing is: Somewhere in Pi, there's a sequence of digits containing all of these possible binary codes in a row, then a million times 1337 and then the same sequence the other way around!

    • @Demonblade36
      @Demonblade36 Před 8 lety +24

      It is not proven that Pi is normal, see any reputable site about maths for this

    • @llasarus
      @llasarus Před 8 lety +32

      +Edward Nutt just because it's not repeating and irrational doesn't mean it contains every possible sequence. For example if we took pi and removed every instance of "12345" it would still be both irrational and not repeating. But this new number would not contain the sequence "12345".

    • @Bubblekeyboard
      @Bubblekeyboard Před 8 lety +4

      +Edward Nutt take a look at 0.12112111211112111112...

    • @Joey28P
      @Joey28P Před 8 lety

      WHAAAT? How do you know that? Are you some sort of mathologist? That's a CRAZY coincidence! :DDD

    • @weasaldude
      @weasaldude Před 8 lety +8

      normal means that it contains all the other finite sequences inside of it. We think pi is normal but we dont know

  • @luukvandenberg99
    @luukvandenberg99 Před 8 lety +1

    Matt Parker is CLEARLY VERY CAPABLE to explain these things!

  • @threepeater_gaming7710

    Congratulations on 420K subs🎉🎉🎉

  • @AdeptusSteve
    @AdeptusSteve Před 8 lety +40

    Where is the number of possible youtube videos in relation to grahams number?

    • @tohfawalker159
      @tohfawalker159 Před 8 lety +31

      it is a minute fraction of grahams number

    • @clearz3600
      @clearz3600 Před 8 lety +29

      This number is laughably tiny compared to grahams number.

    • @OrchidAlloy
      @OrchidAlloy Před 8 lety +20

      +clearz It is relatively equal to zero, from G64's standpoint. As in, you haven't made any progress. At All.
      Graham's Number is fucking mindboggling.

    • @cameodamaneo
      @cameodamaneo Před 8 lety +17

      Um, Samrux, no. You're not even close.
      It's actually equal to (mind boggling)↑(mind boggling)
      ;)

    • @Biped
      @Biped Před 8 lety +1

      We are used to compare in factors. And that's usefull: if my car goes twice the normal speed it's a fast car. If it's 100 times faster it will probably burn up in the atmosphere so that's where everyday applications end. But in the world of exponents..... I'm just guessing but I bet the number of times grahams number is bigger is so large that the number of its digits would be unimaginable....

  • @chromaspark1257
    @chromaspark1257 Před 7 lety +8

    Is that number including sound? XD

    • @suwinkhamchaiwong8382
      @suwinkhamchaiwong8382 Před 5 lety

      Chroma Spark no.

    • @ShimshonDI
      @ShimshonDI Před 5 lety

      ​@@suwinkhamchaiwong8382 Actually yes. He makes a lot of gross simplifications and unrealistic assumptions based on the maximum CZcams file size (128 GB), and considers all permutations of bits in a file of said size. In reality, only certain permutations of bits in a 128 GB file will result in a valid file of a certain file type. Video file types will indicate where the video is and where the audio is, but none of his calculations about CZcams videos take this into account.

  • @takerone
    @takerone Před 8 lety

    I really enjoyed this video, thanks! :-)

  • @HeadLeg
    @HeadLeg Před 3 lety +2

    He pulled the good ol' dream "% of my viewers aren't subscribed" before it was cool

  • @louiskohnke2343
    @louiskohnke2343 Před 8 lety +3

    But the YT-Video number is just for the images and not the sound, what about that?

  • @Xperia347
    @Xperia347 Před 8 lety +7

    I have another Question: How many possible Universes are there? If you would imagine one single Atom as a cube of 1 Angstrom x 1 Angstrom, and then build up the entire Universe out of these cubes; given that there are 118 Elements in the periodic table... Tell me how many, in base universe and in base 10 please. :D

  • @drrobotnik5376
    @drrobotnik5376 Před 3 lety

    I love these permutation lessons!!! its the best!!!

  • @Sam-kt1mi
    @Sam-kt1mi Před 8 lety

    this just makes me remember this live show I went to when some girl in the audience was eating crisps and he had great banter with her

  • @lmartinson6963
    @lmartinson6963 Před 7 lety +7

    2^524,288 images, huh? How many of them would be dank memes?

  • @umnikos
    @umnikos Před 8 lety +3

    Yay! I am in the correct now!!!

  • @CyanideCarrot
    @CyanideCarrot Před 3 lety +2

    Matt did the "_% of my viewers aren't subscribed" before it was cool

  • @jblair8797
    @jblair8797 Před 8 lety +1

    Very cool! I really liked how it put the age and size of the universe into context. It would be fun to see this expressed in terms of the old fable about a bird flying a scarf across a 6 mile x 6 mile granite mountain top once every hundred years. How many mountains would have been worn down in that amount of time?

  • @birdy_coolbeans
    @birdy_coolbeans Před 8 lety +3

    I notice your number of youtube videos don't contain any audio, that sounds terribly dull.

  • @gakilb
    @gakilb Před 8 lety +6

    That makes me one of your people for some time!!

    • @standupmaths
      @standupmaths  Před 8 lety +4

      +gakilb Alright! Good on you.

    • @user-yn6gk7xf3h
      @user-yn6gk7xf3h Před 8 lety

      +standupmaths hey, uh, didn't tom Scott do the exact same thing just yesterday?

    • @aifrostyy
      @aifrostyy Před 8 lety

      +that nerd in the corner no....

    • @user-yn6gk7xf3h
      @user-yn6gk7xf3h Před 8 lety

      +Frostyy whoops, I meant few months ago

  • @EMW_Music
    @EMW_Music Před 6 lety

    "base-universe" Matt, you are spectacular lol

  • @RPG_ash
    @RPG_ash Před 3 lety

    That hurt my brain those numbers were so big. Nice video.

  • @xdjrockstar
    @xdjrockstar Před 8 lety +134

    Anyone else get a vsauce vibe from this?

    • @origamikatakana
      @origamikatakana Před 8 lety +29

      Matt is clearly very capable of a collaboration video.

    • @strengthman600
      @strengthman600 Před 8 lety +6

      Vsauce actually references Matt on at least two occasions and Michael visited Nottingham, where Parker works

    • @Qwerasd
      @Qwerasd Před 8 lety +6

      What the heck is vsause?

    • @mulymule12
      @mulymule12 Před 8 lety +11

      +TheRedstoneBrony you've been missing out on a large part of CZcams

    • @SuperBonobob
      @SuperBonobob Před 8 lety +11

      He was making a joke about the spelling of vsauce in the original comment. -_-

  • @DiegoTuzzolo
    @DiegoTuzzolo Před 8 lety +7

    how many AUDIO recordings of 1 minute can be? I dont even know where to start...

    • @ender_scythe2879
      @ender_scythe2879 Před 8 lety +5

      Infinite, assuming there is no limit on the frequency.

    • @LectiOpi
      @LectiOpi Před 8 lety +4

      But there is a limit on the frequency, so it's not.

    • @Rurexxx
      @Rurexxx Před 8 lety +4

      Audio CD format features 44100 samples per second in 16 bit resolution. This means every sample can have 65534 different values. 44100*60 = 2,646,000 that is the number of samples in one minute. Every sample has the respect the total number of combinations of all the other samples so the number of possibilities is 65,534^2,646,000. Of course waaaaay most of them would be random noise.

    • @Rurexxx
      @Rurexxx Před 8 lety +3

      In a power of 2 that would be approximately 2^(256^21.33). The power written as a single number would be 52 digits long.

    • @Carrejae35
      @Carrejae35 Před 8 lety +1

      +ender_scythe smallest is planck left and largest is Idk maybe the size of the universe

  • @Jiggerjaw
    @Jiggerjaw Před 6 lety

    "But it is finite" THANK YOU for mentioning this, as it will serve me well in future conversations with people who are utterly ignorant about infinity.

  • @Tahgtahv
    @Tahgtahv Před 7 lety

    It looks like the BBC actually is keeping the broadcasts online for a month not a week, which is great, since I just now saw this video and I still have a chance to listen to the broadcasts from week one.

  • @DanTheStripe
    @DanTheStripe Před 3 lety +7

    I love coming back to this video every now and again just to have my mind blown by the pure scale of it all.
    What's insane is that if you set the supercomputer running at one image a femtosecond, you could also, say set your wealth to accumulate at the same rate of one penny (USD) per femtosecond. That way you have the same amount of pennies as images. How long would it take for you to become the richest man on the planet?
    Well, since a femtosecond is 1/10^15 and Bezos' net worth in pennies is around 10^13, you are literally 100 times richer than the richest man on the planet after just one second of your supercomputer running. In fact if you were to blink (roughly 0.1 seconds) you would still be a trillionaire and therefore around 10 times richer than Bezos.
    Every second. 100 Bezoses. And it takes 29 million universes one atom every single femtosecond to complete the CZcams task. It's unbelievable.

    • @KalOrtPor
      @KalOrtPor Před 3 lety +1

      I think that's underestimating the mind blown-ness, it's more accurate to say it takes a whole universe per atom in the universe per atom in the universe per atom in the universe per atom in the universe (repeat writing this out 29 million times). Once you ran the first 13.8 billion years of CZcams videos, one video every femtosecond, only then would you put one atom in the 2nd universe, and after running another 13.8 billion years, you could put another atom in, so you'd have to run the whole universe an entire universe of atoms number of times to fill the 2nd universe, but that lets you put only 1 atom in the 3rd universe. You then have to run 13.8 billion years to start another 1st atom in the 2nd universe, another 13.8 billion years to put the 2nd atom in the 2nd universe and so on and refill the 2nd universe with atoms all over again just to put the 2nd atom in the 3rd universe.......Just like you have to run CZcams videos the whole universe to put 1 atom in the 2nd universe, so must you refill the whole 2nd universe for each atom you put in the 3rd.
      Once the 3rd universe fills up with atoms, then you can place an atom in the 4th universe, and it begins again: Run CZcams videos 13.8 billion years -> 1 atom in 2nd universe -> whole universe of atoms in 2nd universe -> 1 atom in 3rd universe -> whole universe of atoms in 3rd universe -> 1 atom in 4th universe -> whole universe of atoms in 4th universe -> 1 atom in 5th universe.....and so on for 29 million universes. In other words, for each level of universe, you have to redo the level below it a universe of atoms number of times going back every level to the beginning just to add 1 atom.

  • @SomeRandomFellow
    @SomeRandomFellow Před 7 lety +3

    graham's number in base universe?

  • @JoJoDo
    @JoJoDo Před rokem +2

    6:30 I've check the first 10^5 powers of two with my super (in)efficient python code, and it only spits out 65.536...

  • @mysteryshrimp
    @mysteryshrimp Před 8 lety

    14:40 . . . (depending on your personal view of the philosophy of mathematics) . . .
    Thank you. "What are numbers" and "what is mathematics" are two of my favorite subjects.