Re: "there's the edibility problem to overcome"
Edibility doesn't seem to be a problem for the majority of fast food outlets, they seem to be able to sell ship loads of indeterminate, mostly organic mush.
A few weeks back I was out with friends who invited me to a Mac of some description, whether or not the patty had been a part of a formerly live cow was not discernable by taste, true also of the 'fries' with regard to potatoes.