system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How is a global economy based on the requirement of constant, infinite growth sustainable in a world with limited, finite resources?
gpt
Well it depends on what you mean by finite.  Technically the energy provided by the sun is finite as it'll burn out in however many billion years from now.  

The truth is that the resources on earth, while finite, are still tremendous.  There's far more of them than folks make out.  

Nothing, not even habitation on this planet, can last indefinitely.  When asking questions like this it is important to define what you mean by sustainable.  For how long?  If you literally mean "Forever" then no, it isn't.  If you mean "Until technology allows us to tap other resources" then yes, it is.  Because there's more of these finite resources (and even more alternatives to them) then you'd ever imagine.