October 23, 2014

Book 30: Deep

Deep: Freediving, Renegade Science, and What the Ocean Tells Us About Ourselves
James Nestor

I recently watched a documentary about freediving, so it seemed only natural that I should pick up this book when I saw it at the library. From his chosen subtitle to the book's final imagery, James Nestor certainly doesn't hold back: it is clear throughout that the author firmly believes that he has found a fundamental truth about humanity in his experiences in the water. Unfortunately, however, he's not quite able to convince his readers of the same fact. The book- which is part memoir, part pop science- is most compelling when Nestor dives deeply (ha) into a single theme, either his experiences observing and learning the art of freediving (which function as a framing device and connecting narrative) or any of the associated subjects he explores. The framing device- while clever- doesn't quite align with the general flow of the book, which intends to go ever deeper into the ocean, beginning with the surface and ending in the planet's deepest trenches (and reaching a penultimate conclusion with a section of greatly appreciated and cleverly titled "ascents"). Worse still, it is somewhat erratically deployed, showing up in odd places and unnecessarily breaking the reader's concentration, often without adding any clarification to the main text. Though Nestor's side subjects are appropriate to his subject- and do coalesce around the general theme of humans' connection to the ocean- he cannot always link them to his own journey deeper into the sea.

These subjects, including competitive freediving, undersea research at varying depths, and the languages of sharks, dolphins, and whales, usually align with the books' chapters- cleverly numbered at various relevant depths- but it sometimes takes Nestor a while to come around to his point, leaving readers somewhat adrift. Worse still, no one normalized the measurements in the book, particularly in the passages regarding freediving: in an astonishing editorial lapse, measurements morph from meters to feet at a whim; on at least one occasion the change occurred between two lines of otherwise unbroken text(!). This was as immediately disorienting as diving into the zero-gravity stasis of deep water must have been for the author, but I'm not sure that's exactly the feeling Nestor is attempting to evoke in his readers. These and other lapses led me to revisit several passages, and it sometimes feels like the book is comprised of individually minded articles loosely tied together- the book repeats several unimportant facts unnecessarily and seems to imply that the author's most pivotal foray into deep water was both an invitation extended to him and the result of his own organization. Whether it was one or the other is not important, but the confusion engendered by this kind of editorial sloppiness adds to the book's sense of casual choppiness.

All is not doom and gloom. Nestor's text functions as a decent introduction to several interesting and loosely interrelated topics, many of which are otherwise obscure to the general public. I was pleased to learn about a theory of the origin of life that has apparently gained traction since my last biology class, the incapacitating effects of sperm whale clicks, and numerous other points of interest. In the end, however, Nestor cannot resolve the tension between his quasi-spiritual exploration of his and other divers' connection to the water and the underlying science that implies such a connection for the rest of us. He establishes a loose hypothesis firmly and clearly only pages into the book, but never connects the dots, either overtly or subtly. He presents the idea, describes his personal experiences, introduces a few dimly related fields of scientific inquiry, and then concludes that humans must, as a matter of course, be somehow at home in the deep water. The opening chapters offer some promising hints of medical evidence to these ends, but the book never quite follows through, happy to hint at a theme but ultimately comfortable with its ever-divergent narrative forks.

It's somewhat disheartening that the book feels as disjointed as it does, because the author clearly has talent and passion in abundance. He dives with gusto into his subjects, once he decides to, and it is evident that the experiences he chronicles have deeply changed him. He has a few axes to grind, to be sure, but he is usually content to allow his obvious passion make his case for him, only occasionally sliding into awkward partisanship. Nestor's deeply personal writing and easygoing style convincingly invite readers into the world he evokes, and some of the writing is truly astonishing. I repeatedly found myself gasping for air after a particularly vivid description of being underwater, whether the experience was Nestor's, another diver's, or entirely hypothetical. At times I felt like I was drifting on the ocean with the author and the day's team of researchers or renegades, and I missed at least two bus stops while reading the book- not a small accomplishment given my propensity to become easily distracted and the book's own narrative faults. In the end, however, Deep is hampered by the author's enthusiasm, which cannot quite reconcile the promised narratives of his own discoveries, scientific progress, and a fundamental medical truth he never bothers to provide true, convincing evidence for.

Grade: B-

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