I will not dignify your questions with an answer because they are a philosophical derailment. And turning the conversation into one about solipsism and epistemological nihilism is a dead end. Related to this, the simulation hypothesis is nothing but repackaged theism. Many have treaded this territory and nothing of use was discovered.

Besides, I was the one who asked first the much more pragmatic question of why some people consider such a dystopian future to be desirable.

You pose these questions, and then when asked to clarify, claim derailment?

If you think reality is important, then it's upon you to define reality and why you think it's important.

the answer is "the law of cause and effect" and "the problems"