I think in some sense it's just basic human nature. Over hundreds of thousands of years of evolution, humans seem to have been generally tuned to avoid specific

I think in some sense it's just basic human nature. Over hundreds of thousands of years of evolution, humans seem to have been generally tuned to avoid specific, concrete, short-term threats to their own life/health individually, or perhaps extending very slightly just to their own family/group/tribe, but anything that's a threat more generally, more abstractly or longer-term tends to fall off the radar quickly, even if there's a high probability that those things might turn into an existential threat to the individual at some point in the future. I'm also curious how (or if) we're going to learn to collectively solve some of these long-term problems before many of them really start to turn into those specific, concrete, short-term threats to us as individuals, at which point many of the "easier" solutions may no longer be effective anymore.