That's one of the more annoying things about the way most people treat food. People always act like the royalty of generations past would drop to their knees in wonder at the first taste of soda or chips. Sure, you might hit a combination of person and particular attachment to a seasoning. But for the most part I really think most people in the past would be disgusted by the "treats" of today. The crap fat people live on is basically just funneling salt or sugar into a binding agent. There's no complexity to the taste, no real art. It's just a way to shovel one single taste into a person's mouth. I'm not trying to say that junk food is necessarily bad. I like it every now and again myself.  But it is a very blunt, very unsophisticated, way of approaching taste. It's ridiculous to think that people in the past were longing for McDonalds, any more than thinking the authors or the great epics were wishing they could know the works of Michael Bay.