[peterpathname]

I don't think it's possible. We live in a finite world. All my wealth comes from someone else's poverty.

[aidenn0]

There is more per-capita wealth today then there was 1000 years ago. This is despite there being far more people today than there was 1000 years ago. Therefore it is possible to increase the total wealth in the world.

[akgerber]

Some forms of wealth we can produce more of: food, clothes, shelter, electronic doodads.

Some we can't: land (including natural resources), social status, political power.

We should aim for a society that produces plenty of the first type of wealth, and aims for fair distribution of the second.

[kamaal]

That's true and false at the same time.

False because, wealth can be added to any economy every time you build/sell some thing other people want.

True because, though wealth can be added over a period of time at any given time the current net circulation is still a static constant number.

[ahomescu1]

Depends how you define "wealth". If by "wealth" you mean "money", then more money can be printed (not that you'd want to do this). If by "wealth" you mean goods or services, more of those can be produced. I'm not really sure there's any definition of "wealth" that's zero-sum, except maybe "land".