If there's a very high probability that you're living in a simulation, then why don't you believe that you're living in one?

One thing that is characteristic of humans is that they're extremely irrational. They bury and continue loving the dead even when they fully understand that they'll never see them again and they eat and kill other sentient kind despite the fact that they wouldn't want the same done to them. 

Humans can sometimes be defined by their irrationality. Consider the likely propositions that most humans believe in:

1. There was a big bang whose origin remains unknown but resulted in the sequence of events that led to the creation of conscious entities. 
2. There is nothing supernatural about consciousness. It is a physical entity just like gravity or electromagnetism. 
3. It can be represented as a computation just like any other physical phenomena. 

If you view all the above premises as true, human, then it is irrational to not believe that you're in a simulation.

It should be a logical conclusion that some conscious entities which are billions of years more advanced than homo sapiens should be able to create a simulated reality. And similarly these advanced entities are themselves part of a larger simulation; which is inside an even bigger simulation ad infinitum. With infinitely many simulations inside others, it's a logical conclusion that you too, human live in a simulation; quod erat demonstrandum.

 

Free your mind

 

What is the meaning of life?

Life has no meaning.