This essay by Jag Bhalla, on "The Dark Origins of Optimism and its Current Cheerful Evils", is one of the best pieces I've ever read on this. Maybe the best (also many links). Enjoy.
"As Voltaire knew, optimism is often an elite-serving demon in disguise"
Rebecca Solnit: "Hope is an embrace of the unknown and the unknowable, an alternative to the certainty of both optimists and pessimists. Optimists think it will all be fine without our involvement; pessimists take the opposite position; both excuse themselves from acting. It’s the belief that what we do matters even though how and when it may matter, who and what it may impact, are not things we can know beforehand." @bookstodon#hope#socialJustice