What Happens to an Idea After It Has Been Guessed?

All is a woven web of guesses, yes, conjectures. But wait, what about when knowledge does not come from guesswork? What about when i simply hear ideas from other people? They may have guessed them, but i obtain them merely by listening. In all those cases, you still have to guess in order to acquire the knowledge. Most guesses are not new knowledge. Although guesswork is the origin of all knowledge, it is also a source of error. And therefore, what happens to an idea after it has been guessed is crucial. So let me combine this insight with what i know of criticism. A guess might come from a dream, or it might just be a wild speculation