Well, DP/DR people might fit into that 20%, but not all of the 20% are DP/DR, or will ever develop it.See, 80 percent of the world are what I like to call "programmed" they walk around doing everything they have been taught and told in their lives since kindergarden, nothing more or less.
People with DP seem to be the other 20%, the one's that always dream up new inventions, new things to do, very artistic, etc.
To me, people with DP at some point in their life realize that nothing matters and we are all going to die one day, possibly tomorrow, and it freaks them out to the the opoint that then they start questioning the real things in life that the other 80% of the world take for granted everyday like the Sun, the moon, The fact that the universe never ends, wether their is really a god or not, etc.
It's funny that not long before I got DR, I was saying that I'd done everything I ever wanted to do (i.e. have a tune released on a record label and DJ - since I was 2 that's all I wanted from life most of the time). I said I could quite happily die in my sleep and be content that I achieved my one goal in life. Well, I didn't die, I just carried on and got ill. I wish I had, now I've got to carry on with this crap and still try to keep myself above the poverty line until I do die, and I don't feel like I could do much with the rest of my life, even if I wanted to.
I know what that all sounds like, that I sound ungrateful for my life, but it's just so pointless. I totally understand why people believe in God. It's an insane thing to believe in, but it keeps you from going completely mad.