This 'ambiguous cylinders’ illusion is blowing my tiny mind

I'm British, and if I didn't already have enough reasons to drink heavily this weekend, I can go ahead and add this video to the list. Look: reality is broken. It's been well and truly Done In and it wasn't even some interdimensional superbomb that did it. Just a bunch of cylinders which are also rectangular prisms when you look at them in the mirror, but when you turn them round they become rectangular prisms which are cylinders in the mirror.
Oh man. Oh jeez.This is, apparently, the 'ambi