because the hitchhikers guide to the galaxy says so
another answer:
This is an ironic joke from the Hitchhikers Guide to the Galaxy, written by Douglas Adams. When a supposedly all-knowing SuperComputer is asked the meaning of life, the universe, and everything, the answer given is: "42." In another context, Restaurant at the End of the Universe, the ultimate answer is "6 times 9, or 42." Of course, 6 times 9 does NOT equal 42, and therein lies the irony.
42.
42. The answer is 42.
Yes, the answer is 42.
LIFE LIFE
42
Answer Life.
42
The answer to life, the universe, and everything is 42.
He's 42, Born on February 1st 1968, according to wikipedia.
42 is the answer to life the universe and everything
42, 42 is the answer to all of life's questions.
42