Douglas Adams wrote The Hitchhiker’s guide to the Galaxy’ for which introduction to I am grateful to my friend Padraig McKeag.
He listed 42 as the answer to The Question of Life, the Universe and Everything. A good choice I think.
Optional waffle: (I almost met Adams once since we were booked for the same book launch debate, but sadly he had to withdraw on the day so it never happened, and I never got a chance to be one of the many who asked him. On the other hand, the few personal idols I have actually met have confirmed that you should never meet your idols, and mentioning no names, it can be an extremely disappointing experience, so maybe it’s best that I can keep Douglas Adams as one of my favorite authors of all time.)
Speculation on Adams’ use of 42 is well documented. 42 is 101010 in binary, and in base 13, 6 x 9 = 42, 42 is the wildcard symbol * in ASCII etc. Adams denied these, saying 42 had just been a random choice. Check http://en.wikipedia.org/wiki/Phrases_from_The_Hitchhiker%27s_Guide_to_the_Galaxy for more speculations and commentary. Having picked 42, the 6 x 9 joke is exactly what I suspect I would have written to justify it. It is the probably the most common multiplication error for the mathematically differently gifted. I don’t believe the base 13 or asterisk explanations. They are amusing but don’t hold water as The True Answer. I can happily accept he just picked it at random, but that doesn’t mean it is wrong.
101010 has a nice symmetry, a single number with two digits in three groups and 1-2-3 symmetry is itself a fact of life, the universe and everything. It is universally present. It is the basis of fractals, a sort of recursive symmetry which govern many aspects of the development of life, even a key foundation of consciousness.
Suppose 1 and 0 represent the most fundamental things we observe about nature – wave-particle duality, on or off, life or death, existence or non-existence. Above that, we start to see all sorts of 3-way symmetry:
So if you have a lazy day and no boss breathing down your neck, it’s entirely possible to see at least some aspects of The Question of Life the Universe and Everything that might lead to an answer of 42.