The connection between the letter beth and the house character (which beth means) is pretty well established, it's by no means my theory. It might not be 100% certain, but it's the only one I've heard over the years.
When it comes to that video, surely the professor would be aware that lowercase letters are a late invention, b is just a version of the original B, so the lowercase shape per se is irrelevant. Furthermore, I don't think there is any doubt in anyone's mind that B comes from semitic beth, so whatever you do, you need to compare THAT shape to Hieroglyphs.
𐤁 in Phoenician, ב in Hebrew.
Check out https://en.wikipedia.org/wiki/Bet_(letter) and scroll down to the comparison between Egyptian and the Semitic languages.
And again, there's also the name of the letter, which means house, not leg.
When it comes to that video, surely the professor would be aware that lowercase letters are a late invention, b is just a version of the original B, so the lowercase shape per se is irrelevant. Furthermore, I don't think there is any doubt in anyone's mind that B comes from semitic beth, so whatever you do, you need to compare THAT shape to Hieroglyphs.
𐤁 in Phoenician, ב in Hebrew.
Check out https://en.wikipedia.org/wiki/Bet_(letter) and scroll down to the comparison between Egyptian and the Semitic languages.
And again, there's also the name of the letter, which means house, not leg.