you're not trying to teach a behavior, you're trying to change a behavior. I've go GPG implemented. It's completely unused because nobody I know cares.
It's actually worse than that. You're not trying to change your behavior. You're trying to change everyone else's behavior. Your GPG implementation relies on everyone sending emails to you to cooperate.
In Carl Sagan's Cosmos, he lamented that for decades 50% of the world's scientists were devoted to the nuclear arms race. Today the best mathematical minds are financially enticed to become quants. There isn't as much leftover to solve the world's problems.
There is already 3D priniting of cheap disease detection kits. This will be a big game changer in developing countries.
I think this FBI informant had a geek crush on Ray Bradbury. He wanted to stalk him at all costs. He invented this elaborate "Communist-angle" ruse to justify to his superiors the inordinate amount of time he used obsessing over Bradbury's every move, admiring him from afar. I imagine it's easier to maintain this fib than do actual work of any value.
This would make a good comedy sketch, actually! Like a variant of The Tailor of Panama.
Don't compare floating point numbers solely for equality.