I keep hearing over an over how humans can satisfy their entire daily caloric need in one sitting at a fast food restaurant. At the same time I'm looking at the kitchen plates, cups, etc, and they also seem to be getting bigger.
This makes me ask the question - was breakfast-lunch-dinner a concept invented because people:
- Could not make enough food?
- Could not make food fast enough?
- Could not make food with high enough caloric intake?
I'm thinking along the lines of: you can make only so much tasteless porridge and stuff it in your mouth before it gets cold. At the same time I know that gorillas and some other primates have a very long (8 hours?) feeding session of eating raw vegetation throughout the day.
Is there a biological explanation why human food intake should be spread into X distinct sittings?