“We in science are spoiled by the success of mathematics. Mathematics is the study of problems so simple that they have good solutions.”
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I understood the importance in principle of public key cryptography but it's all moved much faster than I expected. I did not expect it to be a mainstay of advanced communications technology.
People meet in bars after work all over the world and talk about the great problems of life and death and the world and politics and they don't take themselves seriously. They can do nothing else except chat about these things in bars after work.
I'm not a great science fiction fan myself. I probably feel that way about Westerns. Like I used to play Cowboys and Indians, they can act out Will and the Robot.
As a child, I read science fiction, but from the very beginnings of my reading for pleasure, I read a lot of non-fictional history, particularly historical biography.