1 - if we don't know if we are real or simulated, we can't trust or senses.
2 - (...) -> we conclude "i think therefore i am".
3 - the only thing we are sure is that we think but not if it's artificial or not
4 - that means we have to find out what the thought is to advance any further.
5 - if thinking is processing information, then what is the program?

the answer to this is as incomprehensive as the beginning of the universe... we are infinitely smaller then the infinite and yet infinitely bigger than nothing. therefore we can't understand neither of them.

unless, of course, someone deletes our answers when we are getting close to the end but that was already said above by someone else...
either way it's pretty absurd thinking that there is another universe, and we are just a simulation, if we can't even figure out how ours was created. if we are a simulation, then who created our creators?

I think the most logical thing to do is to accept that it is impossible to understand our origin and live with it. although it also means that live has no reason...