It's funny, I just crested 50yo and only have started considering this simulation business with any sense of seriousness in the past couple of years. Up until then, I guess I was thinking more on the macro-microverse scale - that is, "what if our entire massive Known Universe exists on the spore atop an imperceivably huge pimple on the butt of an even more inconceivably huge guy on what is essentially a subway in an impossibly unimaginably huge New York subway system?" Or something to such an effect.
But then I watched some youtube things about aliens (I've never believed) and a bit more about "are we in a simulation" as the concept is at least fascinating, and someone put a thought into my brain that was never there before, and it made some sense to ponder. WHAT IF.. not only are we in a simulation, but what if we are not even the actual point of the simulation at all, like this was all made to measure or observe or experiment something completely unrelated (and, again, completely outside of the boundaries of our tiny, tiny perception) and we are just the tiniest of (potentially countless) byproducts? Like we were never even the main point, or even a side point, we just developed because the conditions were there and the possibility deemed it so. As to it being "real" or not, or even what "real" is, essentially is irrelevant. Again, "real" might be so profoundly different to what we can relate to: no light or dark, no life or death, maybe not even consciousness in a relatable manner at all (getting back to all the usual "very alien" discussion at this point). So what is the point then?
The point is there is no discernable point, none that we can ever know, or at least not for a very long time and in consideration that we've not even scratched any of the surface. To think that the universe doesn't work in the solipsistic way that we "are programmed to expect" does seem jarring, and I still get a little fuzzy when I try to conceive of that, but it does make sense to me (as much as anything else possibly can). Anyway, there's only so far one can go with these discussions before it all goes into the wall rather quickly. As a species we are still very fresh to the idea that there is a planet, and a galaxy holding it and other planets, and that there are other creatures here (human and otherwise) that we are trying to coexist with and how to make sense of all of that. Just live your life, try to have some good times, don't be a dick yadda yadda yadda.