One explanation is technological progress. You can imagine if we were to figure out a good way to make space travel cheaper, for example, we'd no longer be lim

One explanation is technological progress. You can imagine if we were to figure out a good way to make space travel cheaper, for example, we'd no longer be limited to earth's limited resources. Of course, in the _long long_ term, entropy increase and indeed we do run out of the ability to grow or even maintain.