[ravi-delia]

Exponential growth can't go on forever (according to our current understanding of physics anyway), but we're a long way away from the cap. Plenty of resources in the solar system, after all. I'm not unconcerned that our resources can only grow as fast as our lightcone, but I don't lose much sleep either.

[lupire]

I used to worry about the heat death of the Universe, before I realized life will annihilate itself first.

[ravi-delia]

Eh, we're a hardy weed. Barring a threat like none we've seen thus far, we'll get there.