I didn't think "the universe has a finite capacity" to be such a controversial idea.

Look, if you use land for farming then you can't use it for something else, right? And the Earth has a finite surface, right? So once all arable land has been farmed and all other land has been allocated for other uses, then necessarily land allocation will become a zero sum game.

If wealth can just be created ex nihilo then human population should be able to grow without bounds, no? The pie is a lie, after all. We can just bake more pies. I don't see how that's possible when both space and food production capacity are bounded.

I'm not sure what you both are on about regarding entropy and cycles, but my point was that raw materials can be used in different ways, productively (converting those raw materials/labor to a more useful form) and wastefully (converting those raw materials/labor to a form that has no "durable value", even if some people make "money"/"wealth").