Can we time travel? A theoretical physicist provides answers

Time travel tends to make common appearances in common culture, with countless time journey storylines in flicks, television and literature. But it is a remarkably old notion: one can argue that the Greek tragedy Oedipus Rex, prepared by Sophocles in excess of 2,500 yrs ago, is the 1st time travel tale.

But is time travel in simple fact attainable? Specified the reputation of the principle, this is a respectable issue. As a theoretical physicist, I find that there are quite a few achievable solutions to this query, not all of which are contradictory.