[torstenvl]

There's some evidence of a genomic component to future discounting. There's a section on it in Robert Sapolsky's excellent book, Behave: The Biology of Humans at Our Best and Worst.

[baddox]

I’d be surprised if there wasn’t some genetic component, just like presumably every preference or personality trait.

I wonder what the sweet spot is, in the context of human biological and cultural evolution. You can obviously go too far in either direction.