It's an interesting question--perhaps it was popularized by that movie The Matrix. My problem with that movie is that, with all the energy in the universe, why would some advanced robotic species waste time enslaving humans for their energy, which likely wouldn't even power the very simulation they participate in. The universe is full of suns which are far more efficient to harvest energy from.
As far as the simulation theory goes, my thoughts are this: if there's no evidence of it, then it's unwise to assume it's occurring anyway. How does one show that this is a simulation?--we would need to be able to enter the "real world", and be able to view the simulation from outside of the simulation. We would also need to be able to be certain that this experience of exiting the simulation into the real world was actually occurring, but there's limits to what the human experience can guarantee (empiricism gets us only so far.) If we "break" the simulation from the inside, we could also just as well assume that we can break the real world. Anything which occurs in the "simulation" can just as easily be attributed to occurring in reality. Why limit yourself to one simulation? Why not have every human being in existence be in their own simulation which combines into a supersimulation that we experience together. Again, no evidence of this occurring. What if, outside of the simulation, we're all brains in jars? No evidence of this occurring. What if we're all actually just souls lost in limbo and this is all a hallucination of post-death? No evidence. What if there's an tentacled alien demigod somewhere in another dimension who is having a multi-billion year long dream about our universe and that's what our existence is? No evidence.
It's the same as questions for the tooth fairy and santa clause: we can make up as many reasons as we'd like as to why anything is happening, but if we can't actually experience the evidence of it, then we must assume it's not real.
Nice nice, interesting thoughts my friend
There are a lot of things we do not have evidence of but yet we still believe in it.
Sometimes it's just about feeling something and the things that happen around you.Ok, of course, you cant be certain 100% because you feel something like that etc.
I just say you cant be sure in something you don't know.Evidence, a strange thing for some things in life
Who knows what happens when we die...if we truly die
And that tentacled alien demigod, i hope he will not wake up