Would it be possible in the near future to use a supercomputer

basically no because the universe is a chaotic system.
The supercomputer pretty much have to be able to simulate the whole universe. he'd also have to know the current state of the universe and how each physical law can be reversed.
But to be more realistic, I think it woulf mostly be ebough to simulate the solar system backwards.
But that is still impossible.
What I could imagine are VR scenarios where you can experience a specific time with extremely high detail and historical accuracy. A computer could realistically place you in the 18th century and have you experience some story that could have happened in the 18th century. It wouldnt be a stpry that actually ever happened but one that you generated in a high detail approximation of the 18th century. So you might hear people talk about the french revolution and live in old paris but each detailed interaction with your surroundingd would be made up.

>>8514310
Well it would only really need to simulate what conscious observers are experiencing, it wouldn't need to simulate distant stars and galaxies

>>8514215
Wouldn't it just be easier to timetravel?

>>8514215
If it's theoretically possible for these ancestor simulations to exist, what's to say we aren't in one right now?

Assuming simulations are possible, and assuming that more simulation can exist in the real universe, then it's statistically more likely we live in a simulated universe than a real one.

>>8516071
Yup this is Bostrom's singularity hypothesis. I'm more concerned about whether or not i'll be able to make simulions of my own rather than if i'm in one currently

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>I'm some random descendant playing my life over in the blink of an eye