Well, most certainly yes! Time Travel is possible. There is no way for you to navigate through time right now but someday, 50 or 100 or maybe 200 years down the line, Time Travel will be as normal and common as Air Travel is today.
There was a time when Air Travel was a fascination. An unrealistic imagination of someone with a mind that could see beyond time. But today, it is one of the fastest and most used forms of travel.
Time Travel is possible in many different ways. There is a possibility that we might find wormholes, warp drives, tachyons, higher dimensions, etc.
Time Travel is every Physicist’s dream. Something that fascinates us.
As hypothetical as the tachyons and as imaginative as multiple Universes, it still is more realistic than God!
Time Travel is possible at the moment too, Just not in the way we want. Right now, you can surely travel forward in time. But the problem is, you can’t come back.
If you are close to a very massive object, time for you, will flow slower than for someone else far away.
The same effect will happen for someone moving at speeds close to light.
If you left Earth on a spaceship and went on a round trip to the nearest star at close to the speed of light, it would take you just 10 years, while for everyone on Earth, a 100 years would have passed.
So, if you want, you can travel forward in time.
But we don’t want that. We don’t want to just travel through time. We want to navigate across time. Enter a specific time, exit at a specific moment! That is what we want.
That will be possible someday. Someday!