I, on the contrary, remain a techno optimist, even more so.
It's a kind of sad, that so many clever people here are losing their confidence into the techno progress. Well, maybe not sad, but it certainly means, that they are not onto something big themselves.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
If continuing the discussion becomes impractical, that means you win at open threads; a celebratory top-level post on the topic is traditional.