"His name, Buzz, fits. He can buzz along at 40 miles an hour when his genetic memory moves him"

This quote is referring to a character called Buzz, and it is suggesting that he is a fast-moving person. Joe Henderson is indicating that Buzz has the ability to move quickly due to his hereditary memory, which is a kind of instinctive knowledge that is passed down through generations. This suggests that Buzz has a natural capability to move quickly, and that his name, Buzz, is fitting for him. The quote also discusses that Buzz can move at 40 miles an hour, which is an extremely remarkable speed. This quote is suggesting that Buzz is a fast-moving individual who has the ability to move quickly due to his hereditary memory. It is also suggesting that his name, Buzz, is fitting for him.