I just finished reading this article about an hour ago and I still find myself wondering, "Who thought this was a good idea?"
I mean, as a technical achievement sure mass produced invisible ink is a cool idea, but for printing novels? I'm the kind of guy who likes to reread books multiple times, and on top of that sometimes I go on book buying binges and buy myself half a years worth of reading material in one go so this idea certainly isn't very appealing to me. What about you guys?
I could think of some cool gimmicks using invisible ink, like a mystery novel where key sections disappear thus erasing possible clues, but a whole novel just seems kind of wasteful.