Everything has to start somewhere so we start with the Chicken Theory (and a picture of a tiny kitten to represent beginning).
For several hundred years chickens were relatively rare and eaten only as a special meal by the mass of ordinary folk. The wealthy, of course, stuffed themselves as much as they desired.
Nowadays, we eat as much as we want. And it is cheap. My regular supermarket (no name no sponsorship) sells them at £2.07 per kg.
However this is a mutated version of those proud chickens our ancestors ate. Follow the link to read about chicken growth.
However the wealthy also eat chickens- but not these ordinary ones; my supermarket sells organic free range ones at £7.45 per kg. -over 300% more expensive.
Thus the Chicken Theory is simply that we happily mimic the behaviour of the wealthy while consuming an inferior product.
Caveat- many will argue that chicken is wholesome see the British Poultry Council. https://www.britishpoultry.org.uk/
