[starshadowx2]

> You shoud see a flat background with one large copy of the letter π floating a little above the background (closer to you).

To me these all look like they're reversed from what this says, like they're further away from me behind the flat part.

[globular-toast]

I always had this problem back in the day when they were in newspapers etc. I didn't really get what people were seeing, because to me it was all in reverse. I looked at these on smaller screens last night (phone and tablet) and I could see them! But just now I tried on my 27" workstation monitors and I got them reversed!

People have pointed out that these are "straight eye" rather than "cross eye" ones. So my theory is on a big screen these are too wide for my eyes or something. I can always go cross eyed (by looking at my nose), but I probably can't go "wide eyed".

[stabbles]

You should focus behind it instead of looking cross-eyed.

[rokkamokka]

I believe this depends on if you focus "beyond" or "in front" of the image