I am with you on that one. I have never believed it would be possible to travel in time because I believe time is an artificial human construct.
When we die I am lead to believe there is no time in Heaven. If true then for most of the eternal existence of our soul there is no time. :-)
As unbelievable as it might sound, time-travel is an established fact in physics. It is based on Einstein’s Theory of Special Relativity, and has been verified experimentally.
Ah, but there are two snags. One, to be easily noticed the object must be moving close to the speed of light relative to you. Doable for atoms. But for humans that would take enormous amounts of energy.
And two, it’s a one-way trip. You can travel into the future. You cannot travel back to the past. So none of that killing baby Hitler stuff.