This will be used to read your mail without opening it, if anyone wasn't yet sure. It reads through 9 layers. If you read from both sides of an envelope, that's 18 layers. So, the envelope is 2, and 5 sheets trifolded makes 17 layers total. So letters with 5 or less pages can now be read and stored for big data and trial evidence. Pretty decent actually.

One should note that each page had one letter printed on it, I doubt it will be useful for reading regular printed text anytime soon.

I'm starting an aluminium lined envelope company, want to get in on the ground floor?

The work described is very interesting, although when I first read the headline I thought the article would be about training a model that predicted book ratings based on book cover images. That sounds like a fun experiment to try, too.

Make sure you fill the first and last several pages of your journal of subversive essays with homages to your pets etc.