People assume that time is a strict progression of cause to effect, but *actually* from a non-linear, non-subjective viewpoint - it's more like a big ball of wibbly wobbly... time-y wimey... stuff.
Isn' t the doctor' s perception both linear and subjective though ? Maybe all one truly needs is a quantum leap of faith ... [video=youtube;DjK9GJMBpt0]http://www.youtube.com/watch?v=DjK9GJMBpt0[/video]
... It' s as old as the show. I didn' t pull a random picture just to humor you, the hero actually leaped into a monkey.