I was putting up some wall decorations earlier today and was painstakingly realigning everything until it looked level to my eyes. It might be just a hair off, but if I don’t correct it, I’ll see the misalignment almost instantly and get bothered for the rest of time until I fix it. Has anyone investigated, or is there literature on the minimum perceptible angle from level to the naked eye?
Hmmmmmmmmmmm. This begs the question, what even is true level?
Perpendicular to the normal vector to the center of the local gravity well
I’ll go you one further: WHY Even is true level?
Still only glancing off of the root of the issue: Has Anyone Really Been Far Even as Decided to Use Even Go Want to do Look More Like?
I feel like I’m missing a reference here, but are you ok?
https://knowyourmeme.com/memes/has-anyone-really-been-far-even-as-decided-to-use-even-go-want-to-do-look-more-like
https://youtu.be/o8ym0HBvpFA