this is very likely the correct approximate theory, although my understanding is that it still requires a fair amount of perfection to get right.

mohummad, like jesus, was essentially invented by the local military authorities for the purposes of generating a national identity.

so, i don't really want to have stupid debates about whether god spoke to this goof, or not - it seems to be exceedingly likely that he's entirely fictional in construction in the first place.

https://en.wikipedia.org/wiki/Crossroads_to_Islam