Sleep

Apparently there is a little confusion as to why animals sleep. Indeed, you have to go a long way down the food chain to find critters that don’t need to sleep.

My view is that it’s hard to make an animal that is both nocturnal and diurnal. Evolution favours one or the other.

And then evolution also gives us sleep so that we don’t go mad doing fuck-all for a few hours every night; it leads to homicide. It makes sense to me.