Glitched Wall Shelf

So there is a very clever shelf design - the exact origin I can't immediately find - making the rounds on social media. This is the first place I spotted it:

https://www.reddit.com/r/Gamingcirclejerk/comments/a9xtgs/this_intelligently_designed_shelf_reminds_me_of/

The shelf looks glitched, like it's clipping into the wall, yet the shelves are level and usable. It's a very clever optical illusion.

So, I made a mini version that can be printed on a 180 x 180 bed. There are lots of improvements to be made here. And I printed the model in 5 year old wood PLA, which was stringy as heck. Please excuse the lack of sanding/staining. Really just wanted to get a proof of concept … up on the wall.