Humans are bad in estimating exponential growth (like, totally - we're good in suppressing bad news, and _very_ bad in accepting ideas we don't like)<p>Still, we're depending on exponential growth (be it pension funding, companies, inflation, you name it).<p>We're lying to ourselves regarding population. Ok, too many people - we'll resort to a vegetarian diet - oh wait, that's not sustainable, too many people. Well, we'll be vegans! Oh wait, not sustainable also, we'll need gene editing (bad, but we'll accept that reaching a certain threshold). Well, then let's grow our food in vertical farms! Seems sustainable, until we reach the next (last?) limit.<p>This expands to anything (ICE vs EE, flying vs train travel). Unless we accept this inherent flaw and restrict us accordingly, we'll outgrow anything.<p>Oh well, then let's just ... ? Go to mars :) (I truly believe this is the only mid-term sustainable¹ option, since we'll never be able to have at most only 2 children as a population - and I'd love to gain as much hate for this statement as possible if I were proven false).<p>¹ Mars will not be enough in just a few centuries, probably even just decades