[lotsofpulp]

> More people is more good

Everything exists within the boundary conditions of its environment. Humans, just like any other organism, can strip their environment of resources faster than they can figure out how to escape the environment or build a new one or whatever.

[brigandish]

It's also worth pointing out that, so far, this is not the case. It may be prudent to be, well, prudent, but we're at an all time high in population and an all time low in absolute poverty. It's possible that more people is a factor in this, not less, and that those boundary conditions are never met.