I like your take, we need to use proper words for each situation. I agree that full pessimism is a form of nihilism. And for full optimism I think the word is n

I like your take, we need to use proper words for each situation. I agree that full pessimism is a form of nihilism. And for full optimism I think the word is naiveness. Both are extremes that should be avoided. And in any good discussion, you want to hear both the optimist and pessimist takes (the reasonable ones), and plan accordingly.