Time travel possible

@MadNutella yes wormholes do allow time travel to the past, but only as far back as to the moment it was created, and the wormhole has to be kept intact all the time for people in the far future to travel to our time, which is quite expensive in terms of exotic matter (the fuel for the wormhole). So no going back to the dinosaurs and such. Anyway given that wormholes are highly unlikely in the first place (we'd need exotic matter which is very difficult to obtain and even if we had it lying around we wouldn't know what the hell to do with it), I'd say traveling into the past is more or less impossible. I mean think about it: if it were possible, we'd have time travelers popping up all the time.

@CreativeThinking thats what i liked about the scientist in the simpsons. "God may exist, but if he does he has as much power as a minister for the post office.

@EliasAlucard I also think that in practical way we will not be able to travel through time any time soon(if ever) I just think that it is could be possible. My whole point was to try to change the view of the guy who said that it definitely isnt possible.

@obladie but you would have timetravelled :)

@EliasAlucard but even if you created a wormhole, and travelled there, would the wormhole necessarily exist as the place or time you go to. I mean they always make it a 2 way street, but is it really so?

@obladie
Please answer me
If photons are massless particles
Then how black holes absorb the light and don't let it escape?
@Ihavenothing
moving slower in respect of time is different
Like if u r time is going 0.99999999999 seconds and normal person's time is going 1 second in same interval that's how u r in past(sort-of)

@TheUnbreakable they don't.

A massless entity cannot exist in our universe...don't be deceived into thinking all is as it appears to be.

Quarks defy all logic..but we are forced to acknowledge their existence.

@obladie I like your knowledge