Blindness

I thought he was blind and I could see. Everyone else thought he was blind and we could see, too. He didn't think he was blind, he thought we couldn't see what he could see. He was surer than I was sure, and this made me more unsure, especially when I didn't have anyone else around to confirm what I'd see. I wondered, if he was so certain, if we were each so certain of what we were seeing, how could I tell which of us could see? And the further I was from everyone else, the less I was able to tell if it was only me. 

Edited: 17-8-2022