Back in 2001, I was fascinated by a study that found that 5% of the Internet is completely unreachable. The researchers who conducted the study called the hidden regions of the net the “Darknet.” They said that some of the hidden regions belong to private companies, others are governmental or military, and some are the domains of hackers and online criminals.
In the years since the first study, lots of physicists have analyzed the structure of Darknet and written formal papers about their conclusions for APS journals. The research led me to wonder what sort of things go on in the Darknet, and inspired me to write a novel about it.
Check out my book The Dark Net to see what I came up with.