Originally Posted by Spider-Fan83
it also depends on what the rules of time travel their are fallowing, like if they go by similar rules as BTTF, seeing future/past self could of dyer consequences...
the encounter could create a time paradox, the results of which could cause a chain reaction that would unravel the very fabric of the space time continuum, and destroy the entire universe...
so the universe may quite literally not be able to infact withstand such an awesome encounter
...or coming face to face with himself 40 years older would put him into shock and he'd simply pass out lol
Fassbender seeing that he's turned into McKellan in 40 years time might make him pass out.
And McEvoy seeing he's gone completely bald as Stewart might do the same.