Uh, there's a weird mechanism in our culture (perhaps a self-defence mechanism of culture) where if one person says: "Hey, I think this thing we don't do yet would make the world a better place." Someone nearby will jump in quicker than were someone on fire, to say: "Not possible", or the time-honoured "Oh yeah, 'they' do that/thought of that already." It's like reverse confirmation bias. We can know our systems are not perfect, we can sing about problems all day long, but if someone mentions solutions or tries to turn the topic to solutions - consistently, I find the response is defensiveness and to try shut it down. Is it people don't want to admire someone right next to them had a worthy idea that they didn't think about, that good ideas are equated with material rewards postfact so that a niche good idea in the wild lacks the kudos of whatever is already established (and open to improvement), or that we are taught without pause that we are powerless to change the world except by established methods ((oxymoron)) and those channels of possibility and approvement? To hope in these days is so often seen as madness, whilst we really do have every reason to hope and try to solve stuff. I think it shows what asking "a biologist" instead of "a human" gets you, if it's not too far to suggest our combined expertise remain still amply fallible and limited. [\rant]. Keep speculating!!