Pessimism is a barrier to progress
This feels like a "terrorist/freedom-fighter" thing and so is effectively saying nothing.Like, Bill Gates accepts climate change is happening, that we should do something to avert the problems, and thinks that we can do that as a species. He thinks that renewables and EVs etc. will all help, but aren't enough and we should look for newer solutions. He has invested in multiple different solutions, presumably because he thinks some will be needed but not all will work.So he's a pessimist, pessimist, optimist, optimist, pessimist, optimist, optimist/pessimist. And that's one person on one idea.I agree with some of his opinions and methods, but disagree with others. I don't mind him investing in nuclear things, I just wish he'd tone down his 'pessimism' about renewables when pitching them because overall I think that is unhelpful,  untrue and unnecessary.He gets many of his downer talking points from Vaclav Smil, who is a grumpy pessimist about both the science and politics of climate change and I think personifies the "Pessimism sounds smart. Optimism sounds dumb" idea.But does that mean "pessimism" is bad in the abstract? I don't think so.