At first, man was interested in the way that animals and plants which you wouldn't dream of eating raw suddenly became appetising.
Cooking is an essential part of the beer making process
Only by letting his imagination run wild could he discover things like popcorn. After all, who'd have thought that little seeds that would break your teeth if you tried to eat them would, with the simple application of some heat, turn into one of America's favourite foods?
In the 21st century, the pioneers of cooking have given up with log fires, and moved on to microwaves. One group of experimenters have made hundreds of youtube videos, including this one of an iphone:
People have zapped everything from Barbie to a whole load of fireworks. As far as I can tell, none of the results are very edible, but one day they might find the next best thing since popcorn.
Well, all right, they'll probably have killed themselves first.
Incidentally, when Apple learned that people were microwaving their product, they came up with a version that can't be zapped because it's too big to fit into your average consumer oven. And I hope they've added a suitable health warning to their packaging.