when surfer flew at a speed fast enough he went so far into the future the barrier that it didn`t exist it was a night mare.the whole universe was ruled by some cosmic mutant named the galactic overlord,somehow i think the surfer stopped this timeline from ever existing this was in s.s#6 original series i know I was dumb enough to sell it when I was 15.the other time with nova piggy backing on him they went millions of years in the past and saw cave people and dinosaurs before leaving.i`m pretty sure he is even faster than the flash.