In my experience, the value of a trip isn't what you take away from it; it's the things that you can't take with you. Nobody really wants to see a whole slideshow of your vacation photos; it'll never compare to being there.
There is a large contingent of people that claim to know about X because they read a good book on it, which is ludicrous nonsense. Indeed the most unique things of any experience is what you cannot put into words.
Language is a very lossy compression algorithm, and some concepts aren't even computable in the first place (i.e feeling and emotions)