Sounds possible. However there's no valid reason/evidence to think that. Personal experiences from people don't count. That's about the lowest source/standard of evidence I can even think of.
I would like to think that there's a distinct possibility that our world is just a simulation (for example a computer simulation being carried out by entities in the 'real' universe). Although, as of yet, there's no reason to think that's true.
sadly this is exactly the sort of thing that by definition we cannot hope to be able to provide a scientific proof to others for. all that there is are personal experiences. however... if we really want to know, we are perfectly capable of digging and finding out for ourselves. that's what i'm doing; i don't expect to find any "valid" proof. i do these things as a science experiment to explore the nature of my consciousness and find my own truths.
Scarecrow like what was it like with all the mushrooms and weed and stuff. What did you see?
i'll talk about mushrooms first because that's where most of my experience is.
that's a hard question to answer, because seeing is only a small portion any experience. when you talk about psychedelics as something that you just "see things" on you don't really do them justice. on low doses, your sensory filters break down, allowing what your brain has deemed "unimportant" or "static" information to pour into you unmodified. colours become more bright. sound becomes more rich. touch becomes more of a connection. you become more aware of yourself, your surroundings, and your deep underlying connection to them. at average doses, all senses are altered (or perhaps filtered even less such that they now appear alien?) and reality takes on new meanings. even if you come to the conclusion that these are just sensory hallucinations, they still raise serious questions about the nature of consciousness and perception. as the dosage increases, thought and reason become useless as time itself ceases to exist to you. you are pulled into the here and now, in which there is no time to think. the infinite within every moment becomes apparent to you. senses seem to dissolve as you become one with the experience; or perhaps the experience becomes one with you? an all-sense-encompassing mirror of your consciousness of sorts. intuition and feelings become the only method you have to comprehend what you are experiencing. because of this it is hard for me to describe any more.
the experience of a strong dose is not for the faint of heart. it has the potential to throw everything you know about life, death, existance and reality into question.
but i totally recommend you try it at least once 10/10 good life lessons
as for weed, it's okay. it gets me high, makes me chill, numbs my pain, makes me sleepy, and gives me the munchies. it's considerably less interesting (but useful at times).