It’s a process. Belief in it from a practical purpose is a world-view and also very sensible as that process being useful matches experience; it is a healthy adaptation of oneself to the surrounding circumstances. Belief in it from a “science knows truth and is the only source of truth” is, first of all, unscientific, secondly, a cargo cult. Science doesn’t tell you shit about whether you should stick your dick in crazy and if it did it wouldn’t tell you the same as your genes which is what you’re going to listen to anyway, and find some rationalisation to dismiss that particular piece of science. And that’s fine. We’re all human.