Here's an idea for a very simple experiment to disprove the idea that reality is just something that we create in our minds (or the idea that reality is significantly different from what we see and detect as the world around us) ... it's so simple that others have probably suggested something similar before, and maybe it does not hold-up anyway, but lets see -
- take a camera (an old film camera may be better, since it's not introducing any extra complexity from digital processing or computerised effects), and go to some clear high ground where we are looking down at a large historic building (it could be anything though, not just a detailed structure/building). First we draw a coloured sketch or painting of the building (assume you are an excellent artist, so your painting is of a high detailed standard) … and after you've finished your painting, you take a photograph of the building from the same observation point (so that your photo will show the same view as the one you just painted).
Now compare your painting with the photograph.
Are they in effect identical?
How can you explain that result if reality is not what you were seeing with your eyes?
Point being – the camera recorded the scene without any use of your eyes or your brain. The photo is independent of your senses. But the image in the photo is exactly the same as the one you produced in the painting where you were relying entirely on your senses and your brain.
How is it possible to produce exactly the same image, unless the scene you create using your eyes & brain is indeed precisely the same “reality” that was recorded independently by the camera?
Just off-hand, I don't see any credible explanation except to conclude that although the camera is acting independently of your brain and your senses, it is recording exactly the same view of reality.
Of course it's true that when you view the photo you are again using your eyes and brain (just as you did to create your painting), so philosophical solipsists might try to claim that the photo is not fully independent of your eyes and brain. But I don't think that can be a valid objection as if to suggest that every time you look at a photo your mind changes what is actually in the photo, to make it just like your painting (that would be a whole new level of different and even more fanciful un-evidenced solipsist-type claims).