[dekhn]

I took some sort of IQ test when I was a kid and there was an entire section that was "if you rotate this object around that axis, it matches which of the followin g options". Try as I might, I can't picture this in my head (picturing anything other than a sphere or a cube is tough) but I found that I could look at the options and logically exclude them in a very tedious way by inspection.

It's one of the reasons I like computer graphics so much: the computer does the rotation for you! Stereo graphics (using the funny LCD glasses) was a true revelation to me, and learning how to rotate things using matrics was another.

[notmyjob]

You must hate those fancy new style captchas where you rotate the object. I’ve never considered the fairness and discriminatory aspect of captchas until now. I wonder if in the future eternal September will finally end as increasingly complex captchas act as a sort of poll test on posting.

[dekhn]

no, if I can see the object rotated then I can visually compare features. It's mentally rotating an object which I can't do easily.