Nikola Tesla and the 369 Code

Book excerpt: Nikola Tesla did countless mysterious experiments, but he was a whole other mystery on his own, Tesla had some interesting habits that he would do, for example he would walk on the block repeatedly three times before entering a building, he would clean his plates with 18 napkins. he lived in hotel rooms only with the number 8 devisible by three, he would make calculations about things and his immediate environment to make sure the result is devisible by three, he would do everything in sets of 3, some say he had OCD (A disorder that can be a mild illness or a severe illness.) and others say he was very superstitious, however the truth is a lot deeper...