Physics and cosmology are things that can be investigated and progress can be made. There is evidence to consider and we have tested theories and speculative hypotheses to discuss.
Your musings about reality not being real, simulations and so on, are not. Once you've said it, that's it, dead-end. After the first time you've heard it, it's just boring and irrelevant - and you bringing it up all the time and everywhere is tedious. If you want to spend your time fantasising about these things, then fine, but it's not on-topic to bring it up in every conversation. I already know that it's possible that what we think is reality isn't as it seems and may be a simulation or whatever. It is, however, knowledge that is of no practical or theoretical use. I don't need to discuss it further. I will therefore ignore any further posts from you along these lines.