Did the Israelites Invent the World's Oldest Alphabet?

In the 1920s, Hubert Grimme claimed that the inscriptions at Serabit el-Khadim were written in Hebrew. In 2016, Douglas Petrovich revived this hypothesis in his book, “The World’s Oldest Alphabet.” Did the Israelites invent the World’s Oldest Alphabet? And how do recent discoveries affected this hypothesis?
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