Was I the only one who read pSycography, thought that Mr. Fourier has done it in the past, and began to think how X-rays were being used to reveal some information on historical papers?
Interesting, did not know there was an actual subject called "Psychographics" (found by googling for "psycography" which Google corrected to "psychography"): https://en.wikipedia.org/wiki/Psychographics
Somewhat unrelated to this subject matter, I know, but wasn't aware of it until this point...
https://en.wikipedia.org/wiki/Swiss_Light_Source
"High-resolution non-destructive three-dimensional imaging of integrated circuits"
https://www.nature.com/articles/nature21698