I think experiences are highly overrated. What I've seen, done or felt quickly gets pale and fades into the background.
For me nothing can replace learning new interesting things and understanding new interesting concepts.
For me nothing can replace learning new interesting things and understanding new interesting concepts.
Learn to tell stories about it to your kids and grandkids if you must, they way people did for thousands of years before camcorders. But the actual moment is fleeting, so live it, be present in it, don't miss that trying record it.
I feel that history is just one of possible fictions. The fact that it actually happened (even to me personally) poses little significance to me. Physics on the other hand is something real, very distinct and intrinsically interesting.
About rewriting memories... You do not only fill the blanks in your memories. Your brain also fills the blanks in what you are looking at, the exact moment you are looking at it.