You can make up any reality that you want, just consume these first and don’t ask me where I found them. In all seriousness though, what you are asking is whet

You can make up any reality that you want, just consume these first and don’t ask me where I found them. In all seriousness though, what you are asking is whether an objective reality exists which is not a settled debate. There is also the whole solipsism thing though many disregard as a valid view of the world because it can be used to justify anything and is not a particularly interesting position. Of course there is also the whole local realism thing with QM and of course the whole relativity thing and time flowing at different speeds destroying a universal “now”. Then there is the whole issue with our senses being fallible and our brains hallucinating reality in a manner that is as confident as GPT3.5 is when making up facts. In fact, it’s all just information and information doesn’t need a medium.