My brother was a big marathoner. He was a great collegiate runner at Beloit College. He won his conference's races, and he did tons of marathons. I would go out and run with him every once in a while just to hang out with him.
All humanity could share a common insanity and be immersed in a common illusion while living in a common chaos. That can't be disproved, but we have no choice but to follow our senses.