> Things that help that flow are selected for. I don't get this part, why does this follow? Why would life that transfers heat faster get selected for? This s

> Things that help that flow are selected for. I don't get this part, why does this follow? Why would life that transfers heat faster get selected for? This seems backwards to me: in reality it seems like life that is more capable or more adapted reproduces more, and that results in more heat moving around most of the time. But progress can go backwards, if there were a nuclear war this would reduce heat transfer.