I have been thinking about how much we can know and more importantly: which knowledge should be relevant to us? First I will explain my thoughts to you. They will end in a questionable conclusion for which I need your help to reassess it:
Descartes as well as Matrix (the movie) and the "Brain in a vat" thought experiment show us that we actually know nothing about our physical state. This fact is frequently used to create horror scenarios, which shows me: Ignorance about our physical state is commonly seen as extremely negative.
But how about our immaterial state? As Descartes' "Cogito ergo sum" already pointed out, at least our thoughts truly exist. But this also applies to our feelings, right? As sure as a specific thought exists in a specific moment, just as sure a specific feeling is felt in that moment, too (irrespective of where this feeling or thought originated). I apply this same argumentation on our memories, our fantasies, dreams etc. In other words, we can be 100% sure that everything immaterial about us truly exists.
If everything immaterial exists for sure, why should our ignorance about the material world bother us? If you set aside your prejudices, you can agree with me that everything you experience is valuable only because of its immaterial effects such as happiness. More examples, why the material origin of the immaterial should be unimportant:
The Big Bang theory states that our whole universe originated in nothing. No god, no motivation behind all this, but that doesn't make our universe less valuable.
If a child was born from drunk and criminal parents, the child itself is just as valuable as any other child regardless of its origin.
All this leads me to the conclusion, that we really shouldn't care about our physical state, because the value of our immaterial experiences remains the same in any case. But that would mean that we could as well trade our physical freedom for a peaceful simulated world, and this is where I hesitate. Can that really be correct? I ask you to find some reasonable arguments against this.