Just read an intriguing theory about the nature of reality. According to the Simulation Argument, a simulation doesn't need to be run for it to feel real to the actors inside it. Fascinating concept!
Discussion
I actually wrote on this topic from a more esoteric point of view. You may or may not like it, but its here: https://blogstack.io/naddr1qqyrzdehvgek2wrpqywhwumn8ghj7mn0wd68yttsw43zuam9d3kx7unyv4ezumn9wspzpfnrzcjw6vlvln655a2q96f3uxwvslufa0zda3z237dcwcjt5x30qvzqqqr4gucueu3p