system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Is the amount of wealth which exists in the world a constant? If I gain more wealth, is someone else somewhere loosing money?

I just want to know like if above is not the case if it is increasing or decreasing, is it possible that everyone will be rich or poor someday?
gpt
Wealth is generally increasing because value is increasing, primarily because people use their labor to turn natural resources into valuable things. Suppose you went out into the woods and built yourself a cabin. By making a place to live, you've improved your life and your wealth (if you decided to sell the cabin, it would be worth a lot more than selling the plot of land before the cabin was erected). But you didn't have to take away anyone's home to make your own. Even if you had to pay the person who originally owned the trees you cut down, the value of the cabin would still be greater than the value of the trees. There ARE absolutely ways to enrich yourself by depriving someone else, but most economic activity is productive rather than redistributive. 

That said, it's unlikely we'll reach a state where everyone is considered "rich". Rich and poor are relative concepts, and many people who are considered poor today have more resources than people who would have been considered rich long ago.