Earlier quoted context omitted.
> I don’t think most peoples 25 year old self can really identify what their 85 year old self will be like. Yes, and I believe this is a reason why people make choices that adversely affect their 50 year old self. Who's that guy in the future going to be? Why should I care about making it better for him?
You could say the same thing about people drinking heavily only to wake up the next day with a massive hangover. So it isn’t the differences between them that’s causing people to screw over their future self.
I can imagine time scales on a par with how long I've lived and to a lesser extent to the ages of people I identify with.
(500 year from now me would see the first paragraph as exceptionally foolish... and also inevitable. But that fact doesn't change the truth of what I'm saying).