alt Hacker NewsIf you put two proofs side by side, you can view from the right distance then uncross or cross your eyes like a stereogram till they converge, which makes differences shimmer.
Instant "spot the difference" solve.
// Long time in print and digital agency
And once you have the hang of this technique, congratulations! You can now enjoy those 3D "Magic Eye" images that stumped a significant portion of the population back in the 90s :)
e.g. https://old.reddit.com/r/woahdude/comments/1lxqd0l/the_most_...