Worm Hole are based on Space-Time concept of Einstein… 4D stuffs… Curvature in Space… but even after more thane a century there is no evidence of it. Recent Gravity Wave detection also proves Varying Gravity… no evidence of curved Space. As Worm Holes are Very Special and Singular Cases of Space Curvature… it exist only mathematically till date.
String Theory, Super Symmetry Predicts it… but they are more of a unstable philosophy rather than Physics backed up by Experiments.
So, no experimental back up to support TT.
Logically, suppose one can travel in time,
A moves one day ahead and meets A1, one day mature A,
now both A and A1 go one more day ahead in time and meet A2, two day older than A,
and now A and A1 and A2 again Time travel to meet their future version…
If we change the day by second… every second u end up meeting new A, if we thing about Nano Second… every nano second u end up meeting A… infinitely infinite A’s got accumulated… very absurd result indeed…
If we apply this Logic while travelling back in time in past same thing happens…
So its absurd… and hence an Impossibility. Entropy explains it better.