Procrastination does appear to have evolutionary benefits. If you only hunt when you're hungry, not only are you determined but you're not wasting resources. If

Procrastination does appear to have evolutionary benefits. If you only hunt when you're hungry, not only are you determined but you're not wasting resources. If I go out every day and kill a deer because I feel like it, and not because I'm hungry (I'd assume a fully grown deer would probably last me more than a week) I'm going to cause myself major problems. Either A) the deer will get wise to me and any deer anywhere will run at the instant sight/smell of a human; or B) I'll kill all the deer and then I'm stuck trying to kill rats for food. Collecting firewood would likely have a similar problem as option B). When humans get it in their minds to cut down trees for anything other than necessity, historically very bad things have happened to us: the prime example of this is Easter Island. A lesser known example is the Old Kingdom deforestation, which is probably why none of Khufu's descendent's beat his pyramid. The scary thing about both of these incidents, especially Easter Island, is that people would have noticed a rapid increase in wind speeds as the trees disappears, they'd have noticed their crops failing (due to the wind) and yet the island is so small that the person who cut down the very last tree could clearly have seen it was the only tree on the island. I'd say in your example Og the go-getter would likely have killed off all the major wildlife around him such that he had a multi-mile trek every day to gather food. Instead of Ug the procrastinator, who could probably walk outside and find a deer foraging on the berries he'd been too lazy to pick.