Of course it hurts because it's very titchy, even titchier than 'Little Willy's', er, little willy, so that when I contemplate really complicated things like 7x8=? . . . I begin to feel my own pain, never mind yours. And when I go on to immerse myself in questions like the how? and the why? of life in the universe then a serious migraine instantly appears. Well don't think about such things, you silly old fool, I hear you mutter under your breath but the unfortunate fact is that I am cursed with galloping curiosity. These, and other questions, some profound, some downright dippy, tease away at me and then I go and buy (another) book, and hey-ho my brain-ache begins!
The "onlie begetter" of this particular headache is Paul Davies, author of a slim volume entitled "The Fifth Miracle". Davies is a physicist with "research interests in black holes, cosmology and quantum gravity" - yeeees, quite! In this book, published in 1999 so that it's possibly been overtaken such is the speed of scientific discovery, he takes his readers on a journey from the indescribably immense down into the incredibly tiny, from the birth of the universe to the creation of the first molecules. He offers the hypothesis that life began, not in Darwin's famous "warm little pond", but inside microscopic rock fissures deep below the oceans and close to hot volcanic vents. Davies is a scrupulously honest writer and hedges his hypothesis about with myriad ifs, buts and maybes. (It is a particular pleasure to me, as someone who has wasted too much time trying to grapple with so-called 'climate scientists' - step up, 'Little Willy' - many of whom refuse to open their research to others that in this book Davies allows us a glimpse of the great and serious controversies that wrack this area of science but whose practitioners are entirely open with their 'facts and figures' thus permitting careful scrutiny.)
However, in addition, Davies postulates that whilst we are undoubtedly descendents of an original microbe, that microbe itself might not have been the first, or second, or whatever. Such was the ferocity of the inter-stellar bombardment the earth received in its early days that truly original, microbiotic life forms might have been wiped out, perhaps more than once. The question then arises as to how likely would it have been if, say, effort #2 had succeeded that the end result would have been much the same as you now see about you? So far, so . . . well, so maybe! But then Davies throws in a curved ball by suggesting that life might have originated on Mars - first! Apparently its current barren, bleak, inhospitable resemblance to a Burnley housing estate should not be taken as a forever! A little before life evolved on earth (3.8 to 3.5 billion years ago), Mars was rather warm and wet and pressurised properly with all mod cons in the volcanic and deep sea departments and could well have been the first progenitor, so to speak. Davies theorises, with considerable persuasion, that large inter-stellar debris slamming into the Martian surface (see, those yobs get everywhere!) would have, in turn, hurled huge amounts of debris out into space and much of it would have landed here on earth. (In fact, Martian rocks have already been identified on earth.) He maintains that very primitive microbiological life forms in a state of suspended animation could have been carried inside these rocks, thus protecting them from all those nasty rays that flash about in space, and having splashed into our oceans they might well have found the right spot to jog them back into action. Equally, he is at pains to point out, it is possible that the process went the other way with earthly life forms being hurled at Mars. ("Heh, heh, there goes the neighbourhood!")
Hanging over all this unbelievably fascinating and exciting stuff, is a truly monster question. Let me put it this way: "In the beginning" there was just matter and energy (two sides of the same coin, according to young Einstein) and - gravity. I emphasise the word gravity because I find it completely mysterious. I know how it works (well, in layman's terms) but no-one has ever explained to me why it works. Why should a mass of something attract something else at a distance? Mind you, it's a good job we have it because the universe began with (I seem to remember from another of those damned books) approximately 75% hydrogen atoms and 25% helium atoms with minute traces of odds and sods to make up the basket [corrected thanks to my first commenter]. There was, I am assured, very slight imperfections in the pattern of the explosion that emanated from the 'Big Bang' which meant that some of these atoms combined and immediately that happened good old gravity began its work. Without it, stars and galaxies would never have formed, and neither would we. It is at this point, the very earliest of moments of the life of the universe that the monster question arises: Does the universe contain Laws that tend towards the eventual creation of life?
Well, of course, no one knows but here is a quote from Freeman Dyson : "The more I examine the universe and study the details of its architecture, the more evidence I find that the universe in some sense must have known we were coming."(1) The answer will only be found if and when it can be conclusively shown that life has not and could not have developed anywhere else in the cosmos. The point is that if our own galaxy (either Earth or Mars, or possible both) are the "onlie begetters" of life then it can be assumed that the whole thing was a fluke, a one-off chance in a zillion. This would suit the 'Darwinistas' because the opposite conclusion, that life has not only developed in this galaxy but all over the universe in countless other galaxies, would imply (I put it no higher) some sort of guiding purpose or aim in the Laws of Physics. That sort of thing might actually send 'Archbishop' Dawkins completely round the bend that he is already halfway around - so it can't be all bad!
You would be right to doubt my pathetic attempts to sum up a complex scientific and philosophical controversy, so let me finish by quoting Davies's final paragraph:
"The search for life elsewhere in the universe is therefore the testing ground for two diametrically opposed world views. On the one hand is orthodox science, with its nihilistic philosophy of the pointless universe, of impersonal laws oblivious of ends, a cosmos in which life and mind, science and art, hope and fear, are but fluky incidental embellishments on a tapestry of irreversible cosmic corruption. On the other hand, there is an alternative view, undeniably romantic but perhaps true nevertheless. It is the vision of a self-organizing and self-complexifying universe, governed by ingenious laws that encourage matter to evolve towards life and consciousness. A universe in which the emergence of thinking beings is a fundamental and integral part of the overall scheme of things. A universe in which we are not alone."
1: Disturbing the Universe by Freeman Dyson, 1979, p.250
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