I found this very interesting. Im completely blind in my right eye and for me there’s a noticeable difference between what I see in each eye see when I close them. Most people would assume it’s just black and that’s true for my left eye but for my right it’s different. It’s like an absence of anything. Nothing.

As for echolocation I feel like I’ve experienced this before. Sometimes when I’m walking around I’ll get a sort of reflex to look to my left and before I actually look I’ll know that someone or something is there. It could just be my imagination. I don’t know.

Anyway cool video.