The Soviet Union, Von Neuman Predictions, and Computers

I have a friend, a young American physicist, who spent a year doing theoretical physics in the Soviet Union. He likes to go to the Soviet Union, not because it is a good place to do physics, but because it is a good place to observe the human comedy. When he went back to Leningrad recently for a shorter visit, he received a proposal of marriage and was called in twice for questioning by the KGB, all within the first week. He speaks fluent Russian, and the KGB people find it difficult to belie...

 Computer Metaphors for Biochemistry

The metaphor of the computer represents in some crude fashion the chemistry of life. Nowadays one may assume that the average citizen of an industrialized country is at least as familiar with computers as with rain forests. The idea of using the computer as a metaphor is a natural one. A computer is a device for handling information according to a program which it is able to remember and execute. A living cell, to remain in control of its vital functions in a variable environment, must also p...