>effectively infinite resources
Sure, like effectively infinite atmospheric carbon sink, effectively infinite Helium, effectively infinite fresh water, effectively infinite trees ... we've treated these things as true, because the World is big and population of humans wasn't so big we've got away with that for a time, now those presumptions are coming to bite us, hard.
Yes, we can work our way out of some holes, maybe all of them. But we have to make things sustainable first, then spend those resources. We're not wizards, deus ex machina only reliably happens in movies.
A little Malthusian.