Would you still use and believe in bitcoin if it became reversible, say if satoshi himself managed the disputes like paypal does?
Will you quit?
As most of others said it's impossible. Satoshi manages disputes? I laughed at that part. Reversible payments are one of the most important specifications in Bitcoin. You get money from other side of the world, you don't want to get disputed. Plus nobody can deny or reverse these payments, Bitcoin is not a corporation.
Christ is it that hard for people to imagine? I've repeated this more than 10 times already I guess, just imagine if it does become reversible what will you do then?