zlacker

This is not a law of nature, it is history as it unfolded in the twentieth century. We don't know if that'll continue to hold or not.

>>mola+(OP)
Yea, but it’s still an open question when or if this stabilizes. A global population of between something like 100 million to 10 billion could sustain an advanced technical society capable of innovation. But, where slowly oscillating between say 1 and 2 billion people would be fine, regular massive population crashes could represent a great filter which generally prevents interstellar civilizations.