Addendum to the previous post
The most bicam script today is actually Perso-Arabic. It’s a cursive script, yes. But writing direction preserves shoulder function (assuming righthandedness), vowels are omitted, and the letters are dead simple.
Everything about the Greeks suggests great groin function and nuked shoulders. Michelangelo's David and his Goebbelsian nerd neck. Obvious lack of bicam. Severe overpopulation by the time of Alexander. And, of course, left to right writing with brushes.