That is the most incredible hypothesis I have ever heard! Tell me honestly now—do you really believe this? Or are you being deliberately provocative for the sake of argument?

Look—if you once just accept the fact that this world we see around us is a picture in our head, all the rest of it follows by inspection! Besides, the alternative view, that we can somehow see the world directly, bypassing the sensory machinery in the eye and brain, is just plain magic!