If you are interested in the two topics mentioned in the title above, I recommend reading the two articles I have shared below. In the first article, Peter Kassan outlines why we are not living in a computer simulation. I found his arguments rather convincing, particularly concerning the assumed equivalence of the information processing capability of a computer and that of a human brain. This is explored in greater detail in the second article by Robert Epstein. Here he goes into greater detail describing the intricacies of the human brain and what makes it so special.
http://www.skeptic.com/reading_room/are-we-living-in-a-computer-simulation/
https://aeon.co/essays/your-brain-does-not-process-information-and-it-is-not-a-computer