Living for 1,000 years

How would we behave differently if we were to live for >1000 years instead of <100?

• We’d be less selfish with our time. We’d have time to contribute at a greater level, to make more of an impact. To do things that last.
• We’d slow down and think more. We’d have time to really consider our actions and our legacy rather than “going through the motions”.
• We’d care more about how we effect the future. We’d be more aggressive about fighting the big issues – or we too must live with the consequences.

Do we need 1,000 years for these things to matter?