[@POOHEAD189] If you want to have a go with mind theories, just explore the Brain in a vat theory. 

Addition: I think I had a debate with someone about this here once. It was about truth being subjective or objective. My statement is that the truth is always objective, personal truths aren't really truths so much as they are perspectives/opinions. And, the proof of objective truth is the simple and inarguable premise that somewhere there is existence. We may be figments of an imagination, but there has to be an imaginer beyond that. 

And that's all there is to that, lol, way to get me going on philosophy.