Thank you - your description is the only one that allowed me to see the “other” perspective. If I really focus on the “wrong” bottom face and bottom left vertex I can see it the wrong way for a short time but the instant me brain notices the top right vertex it flips back.
I must have a pretty warped sense of humour… haven’t had a good laugh like that in ages.
Of course! It’s amazing how this stuff just flows from the keyboard when you’re typing in a shell window, but feels awkward when typing in a Lemmy comment.