If you cross your eyes and look at the routes as if it were a single stereoscopic image overlaying one route on top of each other, the misplaced hold jumps out at you immediately.
I'm also one of them... actually not, I'm not "in US" :)
There's a challenge where you see words like "RED BLUE YELLOW GREEN PURPLE", but they are written in color different to their name. You are challenged to say the color of the text and not read the word out loud.
Intentionally defocusing your eyes makes that challenge trivial.
Am I the only one?
When autostereograms were all the rage in the late 80's I had a program on my Mac Plus that let me make/edit them and I used to edit for hours WHILE looking at them in 3D. Then one time I was walking down a hallway with a repetitive wallpaper pattern, my eyes did the thing, the entire hallway appeared to shift in front of me, and I stumbled and fell.
Rare that I meet someone else that does this. I learned how to do magic eye puzzles as a young child, I think my first was in a magazine and I ‘solved’ it the standard way of placing it close to your nose then slowly pulling back. Before long I could just do it on command and as an adult I find myself doing it all the time, often unconsciously. Makes spot the difference puzzles trivial, that’s for sure
This is odd to me since I've successfully used stereoscopy in the past to find small differences. For some reason, with this image, rather than causing a change in perceived z-level, my eyes fight for dominance and my left ends up winning.
Same, I think there are too many other things around it to make it work for me though.