Time travel is "theoretically" some how possible.
Only if we invent the Quantum Receptor.

We are time traveling in the future by every second.
But in the movies people travel like 20-10 years in the past,
so to make a "Time Machine" we need a Quantum Receptor but it will
need to go 10-100 years in the past.

If you could Time travel you would see your self BUT yourself in the other timeline
would see you the "Time traveler".
Example:
you: S2024 other: S2004

S2024 looks at S2004 at 2004 you would see S2024 and at 2024 you would see S2004

Its complicated i know, but it would turn out like that.
I'll try a simplified version:

Its 2004, someone witch looks just like you shows up, years pass, its 2024
you invent the "Time machine" you go in it and you see yourself from 2004.

If you Time travel 100 or more years ago or the land that your "Time machine" is on dirt that
was newly dug out it would turn out that you'd be underground.