ele. And gratulations. I am delig you could make it. Getting easy, I kno, I suspect it tle toughan you realize.

        to begin o be rillions of drifting atoms o assemblein an intricate and intriguingly obliging mao create you. Its an arra sospecialized and particular t it ried before and    t many years (icles , cooperative efforts necessary to keep you intad let you experie generally underappreciated state knoence.

        oms take trouble is a bit of a puzzle. Being you is not a gratifying experieomic level. For all ted attention, your atoms dont actually care about you-indeed, dont even kno you are t even kno ticles, after all, and not even t is a sliging notiont if you o pick yourself apart om at a time, you omic dust, none of o a single overarco keep you you.

        t atoms are fickle and time of devotion is fleeting-fleeting indeed.

        Even a long o only about 650,000    modestmilestone flas, or at some ot ts, for reasons unknoomsly disassemble, and go off to be ots it for you.

        Still, you may rejoice t it    all. Generally speaking in t doesnt, sofar as ell. toms t so liberally and geniallyflock togeto form living tly toms t dee to do itelse may be, at try life is curiously mundane:

        carben, a little calcium, a das dusting ofots-not find in any ordinary drugstore-and tsall you    toms t make you is t they make you.

        t is of course the miracle of life.

        atoms make life in oty else;i ter or air or rocks, nostars and plas, no distant gassy clouds or smake terial. Atoms are so numerous and necessary t    t actually exist at all. t requires to fillitself icles of matter or to produce ligy and ties on ually be a universe at all. For t time t. toms and no universe for to float about in.

        t all anywhere.

        So toms. But t t you oms and t t of    you o be y-first tury and smart enougo kno, you also o be traordinary string of biological good fortune. Survival orickybusiness. Of t ed siime, most-99.99 pert-are no longer around. Life o onlybrief but dismayingly tenuous. It is a curious feature of our existe    t is very good at promoting life but eveer at extinguis.

        ts for only about four million years, so if you    be as fickle as toms t made you. You must beprepared to c yourself-sioo do so repeatedly. ts muco get from "protoplasmal primordial atomic globule" (as t andSullivan song put it) to se uprigo mutate sover and over in a precisely timely manner for an exceedingly long    3.8 billion years you ed on it, groy sails, laid eggs, flicked tongue, been sleek,been furry, lived underground, lived in trees, been as big as a deer and as small as a mouse,and a million ti deviation from any of tionary ss, and youmigony sop of your y feet for amouthful of delicious sandworms.

        Not only o be attacime immemorial to a favoredevolutionary line, but you remely-make t miraculously-fortunate in yourpersonal ary. sider t t for 3.8 billion years, a period of time older tains and rivers and os, every one of your forebears on bottractive enougo find a mate, o reproduce, and suffitly blessed by fateand circumstao live long enougo do so. Not one of your perti aors randed, stuck fast, untimely ed from its lifes quest of delivering a tiny cic material to tpart t moment in order to perpetuate tarybinations t could result-eventually, astoundingly, and all too briefly-in you.

        t    icular    from tall to ttle of t someturned into us, and alsosome of s a great deal to cover, of course,    isnt really. Itcouldnt be. But ime    is.

        My    point, for s rated sce book t I ext ered, unloved, grimly y-but    it ration t justcaptivated me: a cuta    intot ing about a quarter ofits bulk.

        Its o believe t time ionbefore, but evidently I    for I clearly remember being transfixed. I suspect, in y,my initial i e image of streams of unsuspeg eastboundmotorists in tates plunging over tral Amerid t gradually my attention did turnin a more sco tific import of tion t ted of discrete layers, ending in ter    as to tion, and I remembert;?"I didnt doubt tness of tion for an instant-I still tend to trust ts of stists in trust tion-but I couldnt for t    no eye rate, could look like and be made of. to me t    amiracle. t ion h sce ever since.

        Excited, I took t nig before dinner-an a t I expepted my moto feel my fore-and, starting page, I read.

        And     exg at all. It    actually altogether prehensible.

        Above all, it didnt ansions t tration stirred up in a normalinquiring mind: ? And if it isburning a t    to touct of terior melting-or is it? And    burns itself out, o t sink out?

        But trangely silent on sucails-indeed, silent oanties, synes, axial faults, and t o keep tuffsecret by making all of it soberly unfato suspect tt altogete impulse. to be a mystifying universalspiracy amobook auto make certain terial t rayedtoo eresting and    least a longdistance peresting.

        I no ters imotey, and tim Flannery are t jump out froma siation of t (and ts not even to mentio godlike Ric sadly none of te abook I ever used. All mien bymen (it ing notion t everyt te ers end ion of questions time. So I gre sce    suspeg t it be, and not really t it at all if I could . too, became my position for along time.

        ter-about four or five years ago-I    t moonlit o, o me ainunfortable forceful I didnt kno t t I o live on. I y but t Lakes. Did idea. I didnt knoyime or less, and    or not. (I am very pleased to tell you t until te 1970s stists didnt knoo tio didnt talk about it very audibly.)And o salinity of course represented only t sliver of my ignorance. I didntknoon ein, didnt kno uands could look at a layer of ro a yon ell you     kno, uned urge to knotleabout tters and to uand . t to me remaiest of all amazements-ists . s rocks are or er? arted and    om? And o t-or perists so ofteo kno till t predieartell us o tednesday?

        So I decided t I e a portion of my life-t nourns out-toreading books and journals and finding saintly, patient experts prepared to ans ofoutstandingly dumb questions. to see if it isnt possible to uand andappreciate-marvel at, enjoy even-ts of sce at a level tisnt too tet entirely superficial either.

        t    folloeo be.

        Anyo cover and muco do it, so lets begin.
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