I’ve been enjoying science fiction author Robert J. Sawyer. I wrote about the first three books I read in the previous post. Just after writing that post, I finished a fourth book, Triggers (2012), a present-day political thriller involving accidentally linked minds — one of which belongs to the POTUS.
I liked the story quite a bit, some of it so much I’m inclined to give it a Wow! rating. It was fun, and it presents some tasty food for thought. And I don’t intend to get much into any of that.
Instead, this is about a simple secret code used in the book. It was new to me, and I found it clever, so I thought I’d dash off a quick post about it.
When I was a high school kid, my dad and I sometimes played a game where one of us would make up a secret code, write a message in that code, and the other would try to decipher the message. We generally used simple substitution ciphers, so it was an exercise in letter frequency analysis and word guessing.
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