Wealth is not created when I pay you $10 for something that you made for $5 -- wealth is created when you use labor to add value to natural resources.
To this end, capitalism is very much a zero-sum game. There are only so many resources to exploit, and once they're gone (or otherwise locked up), that's it for growth.
To this end, capitalism is very much a zero-sum game. There are only so many resources to exploit, and once they're gone (or otherwise locked up), that's it for growth.