Technically our entire sensual experience of the world is a simulation that our brain creates for us taken from data fed to it by our sensory organs. It is not much of a step further to wonder how accurate our perception of the world around us actually is and what huge existential contingencies we might be missing.
Thank you @corpsvalues ! I definitely agree, just like dreams, whereby everything is just, well, in your head!
Thanks again for sharing your thoughts.