I think we all do. Certainly, I struggle with that as well. I think this is an inherent property of undecidable questions (contrary to most well-formed scientific theories, which are valuable precisely because they can distinguish themselves from hopeful thinking).
Here's something to consider: some kind of hopeful thinking may be a fundamental psychological need. When I saw the title of this HN post, I had thought that perhaps this was the question that ketamine researchers were considering, but alas not.
It feels like a slightly abstract application of “it’s the journey not the destination.”
>Tout le monde veut être libre
>Personne veut être seul
>Pas d'ordre à donner ou à recevoir
>Personne à faire rêver ou à décevoir
>Ne rien n'attendre des autres, pas d'espoir...