As it turns out, there's a LOT more we can do now (that is actually hard work to boot) than we've necessarily been able to do before.
If you actually take the phrase "reasonably forseeable" seriously, I assure you, chasing down those nasty little details and feeding them through the math takes a hot minute.
People who think like that are seen as serious people who don't foolishly ignore all possible negative consequences.
I, as the reader might guess by now, don't have high hopes for societies that function this way.