Genius, using only one note card

Indeed. Deserves extra credit for genuine outside the box thinking.

It's actually not genius because it doesn't work. I saved the image, enhanced it, and then used my 3d glasses and nothing about it worked.

Were you using RB 3D glasses and did they match the ink color properly?
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I sure this person played with the color values in order to get them to match the hue of the glasses. Also, I suspect that there is an issue of resolution loss between the upload and subsequent download.

Yeah it was the red and blue 3d glasses exactly like in the picture. It could be the picture itself but I doubt it since I couldn't tell any words apart at all. I figured you would be able to read at least a few words. I'll have to try this on actual paper to be positive but I don't think it works.

Not at all