Misanthropic Principle

 
In the June 30th issue of New Scientist Paul Davies discussed the anthropic principle [The flexi-laws of physics]. He says,

If the universe came with any old rag-bag of laws, life would almost certainly be ruled out. Indeed, changing the existing laws by even a scintilla could have lethal consequences. For example, if protons were 0.1 per cent heavier than neutrons, rather than the other way about, all the protons coughed out of the big bang would soon have decayed into neutrons. Without protons and their crucial electric charge, atoms could not exist and chemistry would be impossible.

Physicists and cosmologists know many such examples of uncanny bio-friendly "coincidences" and fortuitous fine-tuned properties in the laws of physics. Like Baby Bear's porridge in the story of Goldilocks, our universe seems "just right" for life. It looks, to use astronomer Fred Hoyle's dramatic description, as if "a super-intellect has been monkeying with physics". So what is going on?

As far as we know, life exists on one small planet orbiting an insignificant star in an unremarkable galaxy off in one small corner of the known universe. This reminds me of a famous Mark Twain quotation [Mark Twain and the Eiffel Tower].

I really like the letter from Nathaniel Hellerstein that appeared in the July 21st issue of New Scientist.

If Paul Davies says that the universe is bio-friendly, then I say he hasn't taken a good look at it (30 June, p 30). The universe is bio-tolerant, maybe, or better yet bio-indifferent. Looking at the night sky, I do not see a cosmos optimised for producing life. It appears to be optimised for producing vacuum.

Even if the universe somehow "needs" life, it evidently doesn't need very much of it. Perhaps, from the cosmic point of view, life is a necessary evil, to be tolerated and limited.

I call this the misanthropic principle - it certainly fits the facts better than the anthropic principle does.