Do you think it is possible to time travel in Heaven but people in that era wont see u at all!
There won't be any time travel in my heaven. Because you won't be separate from anything or anyone.
When you die your meat goes back to nature. Your identity ceases to exist. Your soul rejoins God and becomes part of everything that ever was or ever will be.
It's like when a drop of spray gets flipped off the top of an ocean wave. It exists for a moment separately from the sea, but then it reconnects when it rejoins the surface.
So when you die you won't need to see these things, you will be them. You will be ancient cave dwellers, Muhammad, every creature there has ever been or ever will be. You'll also be every star, from beginning to end. Every little hydrogen atom drifting in the far reaches. Every alien being and every galaxy and every black hole. And all the incredible stuff humans will never discover while they remain trapped in their meat selves.
There is nothing fair about it, no post humus cosmic justice. The most evil people ever will be there exactly like you and I.
But it will be glorious beyond human comprehension.
Tom