Second law of thermodynamics? That's a good one. I really can't be bothered to be drawn into a conversation on the pros and cons of capitalism and human progress (especially if a heatwave is the argument you're running with), sorry
I'm confused, are you denying any work (valuable or not) doesn't produce waste? Or does capitalism magically work outside of physics?
Even without CO2, at the 2% annual growth target rate, the amount of energy humans would output as waste into the environment would literally boil the oceans in a couple hundred years.
If there is no growth, is capitalism still not a zero sum game?