The Gene

An Intimate History

By Siddhartha Mukherjee

How can I have so little to say about such a big book? More importantly, how can I have so little to say about a good book?

Siddhartha Mukherjee became book-famous a few years ago, with the publication of his magisterial history of cancer, ‘The Emperor of All Maladies‘.  ‘The Gene‘ is his follow-up, a magisterial history of the gene (i.e. the basic unit of inheritance).

And it is reasonable to ask at this point: is everything that Mukherjee writes magisterial?  ‘The Emperor of All Maladies‘ and ‘The Gene‘ have a lot in common: they are dense, comprehensive histories of science.  Nevertheless, they are also popular histories, written for non-scientists.  They are, despite their length, approachable works, framed by personal anecdote and driven by emotional concerns.

In fact, the entire framing of ‘The Gene‘ is personal. Mental illness runs with high prevalence through Mukherjee’s father’s family, and it is through the lens of this terrible heritability the Mukherjee first spies the gene itself:

“By then, heredity, illness, normalcy, family, and identity had become recurrent themes of conversation in my family. Like most Bengalis, my parents had elevated repression and denial to an art form, but even so, questions about this particular history were unavoidable. Moni; Rajesh; Jagu: three lives consumed by variants of mental illness. It was hard not to imagine that a hereditary component lurked behind this family history. Had Moni inherited a gene, or a set of genes, that had made him susceptible – the same genes that had affected our uncles? Had others been affected with different variants of mental illness? My father had had a least two psychotic fugues in his life…Were these related to the same scar of history?” (p. 7)

Mukherjee has a knack for picking interesting science. The genetic basis of inheritance is one of the most interesting and important fields in all of science, and its scientific history is a tangle of elegant experiments and moral dilemmas. And cancer is, I think most people would agree, the most important medical problem of our age, as well as one of the most complicated and intractable.

Mukherjee is a doctor, and he writes like one. I mean that as a compliment (sort of).  He is human-facing: he cares about patients.  Though the topics of both ‘The Emperor of All Maladies‘ and ‘The Gene‘ fall within the realm of molecular biology, Mukherjee is essentially the writing about people: the scientists who study the topic, the patients who suffer because of the topic, the doctors who treat the topic.

This is, from my point of view, the great strength and the great weakness of both of Mukherjee’s books: they are human histories of scientific topics.  And, as someone who does science for a living, I have complicated feelings about that.

I love science, particularly biology, which is the research area in which I work.  I do not feel, personally, that science needs to wear a human face to be interesting, or lovable.  For those of us who live in genetics, the magic is in the science itself.

This is not necessarily true for most people, and I understand that. Most people are drawn in by human stories; they have trouble relating to plain science, or find it boring. Popular science exists, as a category, because most people are alienated by textbooks – they need to understand the stakes, and the context, of hard science, before they are able to muster the energy to care about it.

The Structure of DNA – the figure from Watson and Crick’s second paper

But the profound and breathtakingly beautiful thing about science is that it exists completely independent of our stakes, of our context, and of our feelings. Reading ‘The Gene‘, one has the sense that the science of genetics is the science of human genetics, that the machinery of inheritance exists to disrupt and inform our lives, and that its history is the history of its discovery by us.

This doesn’t trouble me for complicated policy reasons (“this emphasis on medicine as a lens for a biology hurts funding for basic research”), although those reasons abide. But when we teach people science through this lens, we teach them to care about science when it affects them, or someone they love. We do not teach them to love genetics for its own sake, for the majesty of its complexity, the careful tickings of molecular machines which happen in and around us at all times, whether we know them or not. Most of which we haven’t even imagined yet. Most of which we will not learn in my lifetime, or yours.

OK, but maybe that is an unreasonable ask. The truth is, most people don’t care about the incredible ballet of mitosis for its own sake – they care about cancer, because it might kill them. Because it has killed someone they love, and there are only so many things that we can care about in a natural lifespan and, for most of us, we ourselves are the most interesting thing around.

And, OK, if that is the case, if a 700 page human history of genetics will interest where a 700 page molecular biology textbook never, ever will, I would rather live in a world with the human history than not.

Siddhartha Mukherjee

But I don’t have much to say about that 700 page history itself. It is scientifically competent, but not, for me, scientifically revelatory. I learned some history I did not know (and I am always happy to do so), but I learned absolutely no science which a normal college biology major would not know already.

It’s always annoying when professionals complain about pop-science books, whining that subtleties were missed or the topic wasn’t covered in enough depth. It makes you want to howl at them to shut up, that the book wasn’t written for them in the first place! I know that I am not the intended audience for ‘The Gene‘, and I want to be clear: the fact that I didn’t learn anything is not because ‘The Gene’ has nothing to teach you. It is an exceptionally information-rich book; it just happened to be information I already had.

The Gene‘ is actually probably a pretty great book (as was ‘The Emperor of All Maladies‘). ‘The Gene’ reminded me of how much I love genetics, how grand and moving I find the machinery of inheritance. To spend 700 pages reading about something I care so much about, how can I really complain? I wish I could do better for Mukherjee, I wish I had something profound to say about him, but I don’t. All I can say is, no matter how the science is framed, getting to spend 700 pages in the company of biology is always a treat.

The Information

A History, A Theory, A Flood

By James Gleick

Have you ever been in love with humanity when you began in a book, and in complete emotional flight from it by the time you finished?  Impressed in the beginning, overwhelmed by the end?  Awed, in the beginning: proud of what we have accomplished, by what we have learned; numbed and overcome, flooded and drowned, by the end?

The InformationBy the time I finished ‘The Information‘ by James Gleick, I was ready to abandon civilization, get back to the land.  To buy a shack somewhere in the middle of godforsaken nowhere, somewhere with no internet, no phone, no television, and never look back, never learn anything new, participate no longer in human progress.

The Information‘ is a history of the human relationship to information.  How we’ve understood it, categorized it, encoded it, compressed it, measured it.  How it has changed us, changed our thinking, our societies.  Ways you didn’t even think that it might have.

Gleick is a science writer, and ‘The Information‘ is about science, specifically about the science of information.  He takes his readers through African talking drums, the invention of writing, the printing press, the inventions of formal logic, the printing press, information theory, the telegraph, the telephone, the OED, the computer, and Wikipedia (to name a few).  He explains the basic mathematical concepts which allowed these advances, and shows the rapid acceleration, over historical time, of our ability to generate, store, send, and process information.

There is a wealth of neat stuff (for lack of a more precise, technical description) in this book: cool facts, good explanations, illuminating connections drawn between different people, ideas, technologies.  I love scientific histories, as a rule: I think it makes it easier to remember how a discovery works if you can embed it in its context.  The best scientific histories give science a human texture; they make it lovable.

For example, you may never master the language of Boolean algebra:

(x(P(x)→ ¬Q(x)) andx(¬Q(x)S(x)))(x(P(x)S(x)))

but who could help but love Lewis Carroll’s famous formulation of the same syllogism:

    1. Babies are illogical;
    2. Nobody is despised who can manage a crocodile;
    3. Illogical persons are despised.

Conclusion: Babies cannot manage crocodiles.

Or, you may not think you care about what Einstein thought about quantum entanglement, but how can you be anything less than delighted to learn that, upon the publication of Einstein’s 1935 paper, ‘Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?”, Wolfgang Pauli wrote to Werner Heisenberg, “Einstein has once again expressed himself publicly on quantum mechanics…As is well known, this is a catastrophe every time it happens.” (p. 366)

James Gleick
James Gleick

If this all sounds like a Nerd Alert to you, you are not wrong.  This is a book about science, and data, and math, and about the men and women who devoted their lives to understanding how those things work, to making incremental improvements to how we organize and retrieve information.  If you aren’t excited about how Turing machines worked, or what the difference is between a bit and byte, about whether or not Godel’s Incompleteness Theorem was correct or not (or whether or not it had anything to do with Heisenberg’s Uncertainty Theory), then this probably isn’t your bag.

But it’s my bag, for sure.  Or, at least I thought it was, but honestly, I’m feeling a little overwhelmed.

This isn’t the fault of the book, or of the author, but of humanity.  ‘The Information‘ is well-written, beautifully presented, thorough and approachable.  It’s interesting, gripping even, clear (for the most part).  It’s a very, very good book.

But it has filled me with despair.  There is so much that I don’t know, that I will never know.  Even today, the amount of information available to me could not be mastered in a thousand lifetimes, and those are just the things I would wish to learn.  And information is being produced at a rate which is unprecedented in human history: unprecedented and accelerating.

“As of 1972 businesses could lease high-speed lines carrying data as fast as 240 kilobits per second. Following the lead of IBM, whose hardware typically processed information in chunks of eight bits, engineers soon adopted the modern and slightly whimsical unit, the byte. Bits and bytes. A kilobyte, then, represented 8,000 bits; a megabyte (following hard upon), 8 million. In the order of things as worked out by international standards committees, mega- led to giga-, tera-, peta-, and exa-, drawn from Greek, though with less and less linguistic fidelity. That was enough, for everything measured, until 1991, when the need was seen for the zettabyte (1,000,000,000,000,000,000,000) and the inadvertently comic-sounding yottabyte (1,000,000,000,000,000,000,000,000). In this climb up the exponential ladder, information left other gauges behind. Money, for example, is scarce by comparison.  After kilobucks, there were megabucks and gigabucks, and people can joke about inflation leading to terabucks, but all the wealth amassed 
by all the generations of humanity does not amount to a petabuck.” (p. 394)

I have come to the end of ‘The Information‘ feeling demoralized by my own mortal lifespan, my ignorance, my faulty memory and my lack of math prodigy.  I will not know all that there is to know; I will not know any minute fraction of what there is to know; I will not even master the subjects which matter to me.  I will not master anything, because knowledge is being produced too fast to allow mastery of anything for very long (and because I am a dilettante).

And if I am not master of my subject, how will I know truth from fiction?  How will I distinguish good information from bad?  Gleick deals with this problem explicitly, and his conclusion is not comforting to me.  Because ‘information’ is not the same as ‘truth’; ‘content’ is not the same thing as ‘veracity’.

“Still, who could love a theory that gives false statements as much value as true statements (at least, in terms of quantity of information)?  It was mechanistic.  It was desiccated.  A pessimist, looking backward, might call it a harbinger of a soulless internet at its worst.  “The more we ‘communicate’ the way we do, the more we create a hellish world,” wrote the Parisian philosopher – also a historian of cybernetics – Jean-Pierre Dupuy.

“I take “hell” in its theological sense, i.e., a place which is void of grace – the undeserved, unnecessary, surprising, unforeseen.  A paradox is at work here: ours is a world about which we pretend to have more and more information but which seems to us increasingly devoid of meaning.”

That hellish world, devoid of grace – has it arrived?  A world of information glut and gluttony; of bent mirrors and counterfeit texts; scurrilous blogs, anonymous bigotry, banal messaging.  Incessant chatter.  The false driving out the true.” (p. 418)

Gleick does not believe so.  He sees a different world (one begins to suspect that he does not watch the news); his relationship to information is hopeful: “Infinite possibility is good, not bad.  Meaningless disorder is to be challenged, not feared.  Language maps a boundless world of objects and sensations and combinations onto a finite space…We can be overwhelmed or we can be emboldened.” (p. 419)

And I’m very happy for him, but this Sisyphean message has undone me utterly: it is very rare that I am so impressed by a book and yet so depressed by it.  Smarter, yes, but more acutely aware of how little I know, how little I will ever know.

Cannibalism

A Perfectly Natural History

By Bill Schutt

When you were a kid, did you ever feel as though you belonged to a completely different species than everyone around you?  As though you were totally alien, a tiny island of strangeness in a vast sea of normality?  That there was no one like you, no one who would ever understand why you liked the things that you liked, dressed the way the you did, wanted the things you wanted?

I did.  When I was a kid, I was pretty sure that I was the weirdest person on the planet, humanity’s outlier, doomed never to do the right things and never to have companions in my own, odd interests.

CannibalismI was wrong, though.  There are other weirdos like me, and I can tell because otherwise there would be no market for books like ‘Cannibalism: A Perfectly Natural History‘.

Some books are about exactly what you think they’re about. ‘Cannibalism: A Perfectly Natural History‘ is both a history, and a natural history, of cannibalism.  It describes the circumstances in the animal kingdom in which cannibalism reliably occurs (in what species, in what conditions).  What animals eat their own young, and why?  What animals eat other peoples’ young, and why?  What animals eat other adults, and why?

And it’s a history of human cannibalism.  Schutt, on principle, doesn’t spend time on so-called Cannibal Killers, like Jeffrey Dahmer, aberrant individuals who happened to eat other people.  Instead, he is interested in institutions of cannibalism in human society, either rituals in which humans construct meaning around the eating of other humans, or circumstances in which humans semi-reliably eat other humans (like mass starvations).

He does spend a chapter on the Donner Party, the incident of human cannibalism with which most of his readership will be familiar.  But he also devotes a chapter to, for example, the practice of placenta-eating, which he describes (defensibly) as cannibalism.

I can see already that I am going to have difficulty describing how happy it makes me that this book exists.  ‘Cannibalism‘ isn’t literature, for sure, and it probably won’t go down as one of the all-time most beautifully written scientific texts.  But it’s an entire book about cannibalism!  It’s 300 pages of well-articulated information about the myths and facts of cannibalism – I really can’t offer praise much higher than that.

I think that there are two essential relationships that people can have to the grotesque.  Some people have a basic disinclination to the weird and the gross.  They find it aversive, or boring.  They have no interest in learning, say, which insects can lay eggs under your skin, or how to get a lightbulb out of a human rectum (or why someone would even put a lightbulb in a human rectum, for that matter), or what an infection of flesh-eating bacteria looks like, or any of the other creepy information lurking at the corners of the human world.

And then there are people like me.  It’s not that we like learning about serial killers, or bloodworms, or disturbing sexual perversions, not exactly.  It’s that, as soon as we learned that the knowledge existed, we needed to have it.  We were drawn to it.  The gruesome has an irresistible fascination for us; say to us, “Don’t look at that – it’s disgusting, or wrong, or forbidden”, and you have only assured that we will look.

If you are the sort of person who is not attracted to the strange, then ‘Cannibalism: A Perfectly Natural History‘ is not for you, and it will help not at all if I tell you that, for example, there is an entire chapter on sexual cannibalism in the animal kingdom (though, of course, that was an immense selling point for me).  It’s called ‘Sexual Cannibalism, or Size Matters’.

Which chapter heading also usefully describes the writing style of ‘Cannibalism’.  Although Schutt is a professor of biology, ‘Cannibalism’ is meant for a popular audience, and is written in a jokey, approachable style.

Bill Schutt.jpeg
Bill Schutt

I don’t mean that entirely as a compliment.  Popular science is difficult to write.  You never make everyone happy: you’re either too dense for the layman, or too dumb for the scientist.  Schutt isn’t quite able to make up his mind on which way he’d like to err, so he sort of tries to disguise a lot of the actual science by surrounding it with dramatic description and dad-jokes:

“Insects undergoing pupation, the quiescent stage of metamorphosis associated with the production of a chrysalis or cocoon, are also vulnerable to attack from younger conspecifics.  The ravenous larva of the elephant mosquito (Toxorhynchites) not only consumes conspecific pupae, but also embarks on a killing frenzy, slaying but not eating anything unlucky enough to cross its path.” (p. 23)

“All caecilians do share one characteristic unique to the amphibians: internal fertilization, and during this process, sperm is deposited into the female’s cloaca with the aid of a penis-like structure called a phallodeum…But as interesting as the concept of legless caecilians wielding their penises underground might be (admittedly, it disturbed some of my older Italian relatives until I explained the spelling differences)…” (p. 80)

But there is a lot of science, and that I do mean that as a compliment.  I learned a lot about cannibalism, both in humans and in animals  (I think my all-time favorite fun fact (soon to be deployed at parties, I can tell), is from the chapter on Christopher Columbus and the alleged cannibals he encountered in the New World:

“But whether or not these strange savages had tails (and even if they were supported by trained fish and Amazonian girlfriends), plans were soon being formulated to pacify the Caribs, who were now being referred to as Canibs.  According to scholars, the transition from Carib to Canib apparently resulted from a mispronunciation, although in light of stories describing locals as having canine faces, I agree with Yale professor Claude Rawson that “Canib” may also be a degenerate form of canis, Latin for “dog”.  Eventually, canib became the root of “cannibal,” which replaced anthropophagi, the ancient Greek mouthful previously used to describe people-eaters.” (p. 102)).

And Schutt deals properly and respectfully with the problem that many of the “facts” of human cannibalism, the famous stories from Papua New Guinea and of the Aztecs, among others, are probably exaggerated or fabricated.  Even the so-called eye-witness reports were often racially biased, and accusing a tribe or a people of cannibalism was often just the easiest moral justification for enslaving them and confiscating their property.

I also want to put a small plug in for the illustrations, which are weird and charming and chosen without rationale that I can understand.  Some are deeply helpful and clearly scientifically apropos, but some are bizarre and seem to be there just to amuse, which they do.

For example, the first is a useful one from the chapter on the Donner Party, which shows their trail.  Next is one of dubious, but potential, utility, from the chapter on Bovine Spongiform Encephalopathy, of the structure of a ‘hypothetical prion’.  The third is stranger still, an illustration of ‘skull moss’, which is, as you might have expected, moss grown on a human skull (preferably that of a hanged man), and which was used to treat bleeding.  And, perhaps most confusingly, and also from the chapter on Mad Cow Disease, is a drawing of a hamburger, in case you didn’t know what one looked like.

As, I said, charming, about as charming as a book on cannibalism could possibly be.  And, if you are anything like me, that’s pretty charming.

Sapiens

A Brief History of Humankind

By Yuval Noah Harari

All Posts Contain Spoilers

Why is it that only men write books like this?

It’s never a great idea to deal in generalizations, and I’m sure that there are exceptions, but women usually don’t (to their credit, I think), write books like this one, making global, grandiose claims about the human condition.  A woman might write a book examining, say, the thickness of weft threads of linens woven under the late Egyptian Pharaohs; down the hall, her male colleague will write a book about why humans strive, or some such garbage.

I have just read one of those male-authored garbage books.Sapiens

It’s my own fault, really: I had plenty of warning that it was going to be.  I was informed about what sort of book it was not only by the author, Dr. Harari, himself (the subtitle is, after all, ‘A Brief History of Humankind‘), but by its many adoring readers: ‘Sapiens‘ (and Harari’s next book, the nauseatingly titled ‘Homo Deus: A Brief History of Tomorrow‘) have become the latest favorite texts of exactly the sort of male, Silicon Valley hardos who eat up these kinds of superficial, explain-all Theories of Everything.

OK, but, let’s at least try to be fair: a book should never be discounted simply because it has terrible fans.  There are nice things to be said about ‘Sapiens‘, including:

  1. Harari is not a bad writer.  He does tend to the overly-colloquial at times, which makes him sound a little like your dorky history teacher trying to connect with you (‘Finally, people began to make a more careful selection among the sheep in order to tailor them to human needs.  The most aggressive rams, those that showed the greatest resistance to human control, were slaughtered first…Voila! Mary had a little lamb and everywhere that Mary went the lamb was sure to go‘ (p. 92).  It makes you cringe).  But this is a venal sin, and, in general, his arguments are lucid and succinct.
  2. He covers an astonishing amount of material, even if he does it, by necessity, cursorily.  And he is excellent at choosing supporting examples; he draws from an enormous range of historical anecdote, and deploys his anecdotes interestingly and well.
  3. A few of his many, many arguments are thought-provoking and unusual in today’s academic atmosphere.  For example, he makes a pretty spirited case for the idea that bigger, more consolidated governments (i.e. more Federal), and empires in general, are better at promoting peace and prosperity for more people over historical time.  In a time of increasing Balkanization and more focus on local self-determination, it is worth reading an intelligent, measured defense of this idea.

Harari
Yuval Noah Harari is a Professor of History at the Hebrew University of Jerusalem

However, these good points do not add up to a successful venture.  The trouble with any project of this kind is that, since the scope is so wide, the conclusions must be glib.  In fact, even when Harari makes perfect sense, you are left with the disconcerting sense that he is making too much sense, that he has dispensed with something complicated and important too quickly and out of hand.  It makes him seem tricky, like he’s rushing through his argument so you don’t notice its holes.  Like he’s selling snake oil, and not waiting around for you to discover that it doesn’t work.

Here is an example:

“Culture tends to argue that it forbids only that which is unnatural.  But from a biological perspective, nothing is unnatural.  Whatever is possible is by definition also natural.  A truly unnatural behavior, one that goes against the laws of nature, simply cannot exist, so it would need no prohibition.  No culture has ever bothered to forbid men to photosynthesize, women to run faster than the speed of light, or negatively charged electrons to be attracted to each other.” (p. 147)

At first read, that paragraph makes perfect sense; more, it seems like rather a good point, doesn’t it?

It isn’t; it’s shallow and pat.  His argument hinges on a deliberately obtuse reading of the word ‘unnatural’.  Harari is insisting that ‘unnatural’ means ‘impossible in nature’, when clearly it means no such thing.  In fact, humans now do things all the time which are ‘impossible in nature’ (to see how disingenuous he is on this point, just substitute ‘faster than the speed of light’ above with ‘faster than the speed of sound’, another ‘impossible’ thing which we now do regularly).  Some formerly ‘impossible’ things have become taboo (genetically engineering children which glow in the dark: totally possible, taboo); some have not (supersonic travel).

More than that, when people indict a behavior as ‘unnatural’, they clearly do not mean that it is impossible – they mean that it isn’t in accordance with the goals of biology (usually stable sexual reproduction) as they understand them.  That may be a stupid standard (I think it is), but deliberately misunderstanding ‘unnatural’ to mean ‘not possible’ so that nothing that can be done can be ‘unnatural’ is equally stupid.  This is a complicated problem of morals and language; it should not be done away with in one paragraph.

FullSizeRender 3.jpg
This is what I’m talking about: a diagram of resource flow during the scientific revolution, with only three nodes (p. 250).

There are many problems like this, places where something thorny and nuanced is dispatched too quickly.  And, to be fair to him, Harari might well answer that that was intentional, that he simply could not cover what he needed to cover and do everything justice.  He would probably be right.  If you’re trying to get from Homo erectus to cyborgs, you can’t stop and smell every rose.

But I question the very project: did we need this book?  I came away with the impression that Dr. Harari is a good thinker; did we really need him to survey human history for us?  Is human history the sort of topic best understood in survey form?  Might his mind have been better tasked with answering one of the many interesting questions that he poses in more depth and, frankly, with more integrity?  Isn’t it almost always better to acknowledge complexity than to gloss over it?  I think so.

Perhaps the best way to put it is this: I do not regret reading ‘Sapiens‘, and I might even recommend it to other readers of certain tastes.  But you’re going to have to put a gun to my head to get me to read ‘Homo Deus‘.