Just answer the questions: How do you measure the quality of an experience? Is climbing Mount Everest "more rewarding" than climbing Mount Whitney or Pike's Peak or the Empire State Building? If so, on what basis? Height? Slope?
To me, the only thing less rewarding than climbing a mountain, is being bored to tears listening to someone give a talk about climbing a mountain.
Now wading up a jungle stream and photographing an un-described species of dragonfly, that's a different story.
Seeing the expression of pure joy on my grandson's face when he was taking his first steps, looked like it was very rewarding to him, and he would not let anyone help him stand or walk after that.
I may be wrong, but it seems to me that I think I can determine how rewarding someone else's experience is, if I have had a similar experience, but that is subjective not objective.
What if Eleanor Roosevelt had wings? -- Monty Python
One important characteristic of a theory is that is has survived repeated attempts to falsify it. Contrary to your understanding, all available evidence confirms it. --Subbie
If evolution is shown to be false, it will be at the hands of things that are true, not made up. --percy