Review: The Artificial Ape: How Technology Changed the Course of Human Evolution by Timothy Taylor

(This review first appeared in The New York Journal of Books on 23rd August, 2010.)

The Artificial Ape is a book with a plausible idea, but that is all it has. If you are looking for a convincing argument that “technology changed the course of human evolution” or even some compelling evidence, this is not the book for you. However, if you like informed speculation about humanity’s prehistoric past and you enjoy surveys and summaries of this immensely long and fascinating period, The Artificial Ape will keep you turning the pages.

Taylor is a well-known and popular archeo-anthropologist and is beginning to make himself a name for controversial speculation. His Prehistory of Sex takes us back 8 million years and The Buried Soul makes some startling claims about how widespread cannibalism and vampirism were in prehistory. The Artificial Ape follows in this tradition.

Taylor’s main contention is that tool use in early hominins was a necessary step to allow us to develop our large brains. In particular, he speculates that the invention of the baby sling must have occurred about two million years ago (although there is no actual evidence). This would have allowed a hairless ape with an upright gait—and thus a restricted pelvic gap—to give birth to increasingly immature babies, ones that could not cling to their mothers and would need to be carried, thus allowing the brain to continue to grow and develop outside the womb. As Taylor puts it, turning ourselves into artificial marsupials.

He makes much of the fact that tool use in hominins began about 2.5 million years ago, long before signs of accelerated skull-size began to be seen in the fossil record (after 2 million years ago). It is a puzzle that stone tools were being made and used before Homo ergaster and then Homo erectus began to develop their larger brains, and it is this puzzle that Taylor’s hypothesis attempts to tackle.

Taylor also points to the fact that an ape with an upright gait has a much shorter intestine than one on all fours. This means that not only meat eating but cooking may have been essential precursors to the development of bipedalism, simply because of the difficulty of finding sufficient nourishment from a vegetarian and raw meat diet with a short gut, at a time when we would have been extremely active and burning calories at a rate rarely seen in humans today.

Interestingly, recent evidence, published after the book was released, pushes the date for tool use and meat eating back to perhaps 3.4 million years—the pre-Homo days of Australipithecus afarensis. This find gives Taylor a 1.4 million year gap to explain before brain sizes begin to increase. But it does provide more time for full bipedalism to evolve after tools for butchering meat are first seen.

Given the paucity of the evidence, much of what Taylor proposes must be taken with a pinch of salt. For example, hominin skulls are quite plentiful across the last two million years, but there are only a dozen or so before that time. The graph of brain capacity against time that he presents is quite compelling but it would not need many new data points in the pre-2 million years’ range for it to look very different. More critically for the argument, there are just three hominin pelvises that have been found covering a period of almost 3.5 million years. While they approximately match the required changes in morphology for an ape specializing increasingly in bipedalism and immature neonates, it is very little to base an argument on.

So the book is disappointing in that, having made its surprising but apparently reasonable claim, it then provides scant evidence and only weak arguments in support of it. It is disappointing in other ways, too. It contains long and frequent digressions into areas of human cultural evolution that are not strongly connected to the main argument and which tend to dilute and confuse the message.

While fascinating in their own right, Taylor’s discussion of neolithic art and culture do not contribute much. Similarly, his extended discussion of why Tasmanian aborigines had apparently “regressed” to a level of tool use and a style of living not far removed from that of chimpanzees, while a very useful antidote to Victorian condemnation of and dismay at their lifestyle (which still persists in a mild form in academic circles today), does not strengthen his argument appreciably.

Some discussion as to why other hominids (the great apes) have not taken the same evolutionary path as humans, despite the strong probability that they were as proficient with tools as our distant ancestors were, would have been worthwhile. It is likely that chimpanzees have been using tools for as long as us, yet it has not led either to bipedalism or to increased brain size. The same problem arises with birds. Modern studies show extremely surprising sophistication of tool use in crows and other species of bird, yet we do not see the same evolutionary tie to tool use that Taylor suggests for ourselves. Birds have not become “artificial avians.” Why not?

And the same problem arises with dolphins, which also use tools. Bird brains also raise the interesting problem for Taylor’s hypothesis that their brains are notoriously small. Claiming that tool use (technology) enables increases in brain size, in the face of a crow’s tiny brain, begs the question as to whether the evolution of technologies and brains is causally linked at all. It would have been useful if Taylor had addressed some of these issues.

The Artificial Ape is a good read. It is full of interesting and provocative ideas and information. Yet, while it is interesting and its main idea is appealing, in the end, it fails to make its case.

Hope For Intelligent Kids Who Are Unhappy

Nearly three years ago, I wrote a post called "Why Ordinary People Make Intelligent Kids Unhappy". It was immediately, and still is, one of my most popular posts. It is clearly an issue that concerns many people. Yet, looking back, I see it is a post in desperate need of a follow-up. The original post merely analyses the problem and offers no solace, and certainly no solutions. Most likely, many of the people who read the post felt worse after reading it rather than better. That's OK, I suppose. The world isn't here to make us feel better. It's just a place we need to cope with, and understanding what is going on in the world can only help us cope better. However, there are some things I could say that might make some people feel better, and it's about time I said them.

So here they are:

1. There is hope. I was a bright child. I was rejected to greater and lesser degrees by my family, my schoolmates and my teachers. Being clever doesn't win you many friends. Sometimes none at all. I grew up in a working-class city in the North of England. The people around me were poor, ill-educated and, almost without exception, ignorant. Most of them were also very stupid. Yet I found a way through. I was certainly luckier than many - my mother was bright and supportive, and I got a free, university-level education. I left the place I grew up in and went in search of better places. Eventually I found them. It's a very big world and there are many, many niches in it. Keep looking and you may find yours. It helps the search if you move to a major city.

2. Other bright people can sustain you, even if you never meet them. I'm not just talking about the Internet, here, although it's an obvious place to look for like-minded people. I didn't have the Internet when I grew up, but I had books. Read widely and read good stuff (on- and off-line). You will find that many of the people who became great writers also went through what we did. One of the best moments in my reading life was when I discovered J.D. Sallinger. In his short stories in particular, I often got that heart-stopping moment of recognition when I realised that this man knew my pain. Maybe Sallinger will do it for you too. Most likely it will be someone else. Just one word of advice - especially about the Internet. While it is easy to find fellow sufferers, and wallowing in misery together can be a relief for a while, in the end, you will get more of a lift out of positive, strong people. However bright you are, you're only human and you have the same psychology as we all do. Don't get locked in a downward spiral of self-pity with someone else. You'd both be better off on your own.

3. Work can help. Clever people tend to be good at certain things. They make good scientists, engineers, writers, and so on. Even in less intellectually challenging jobs - as administrators, planners, managers, etc. - they tend to shine. They might not get the promotions, they might not get the big bucks - for that you also need social skills which cleverness does not guarantee - but they do their jobs so well that they earn the respect of their peers. Respect isn't love, it isn't necessarily acceptance, it isn't even kindness, but it's something and it is not to be sniffed at. Respect from others helps you respect yourself - and self-respect helps in many different ways.

4. Don't worry about the meaning of life. There is none. Bright people are their own worst enemy when it comes to seeing through the crap. Sooner or later, you will conclude that there is no god, there is no deep meaning to the Universe, you have no destiny, and, in fact, there is no point to anything at all. That's fine, but you shouldn't let it worry you.

'Purpose', 'meaning', 'point' and so on are ideas that people come up with , they are not things we find in nature. The 'purpose' of the rain might be to make the crops grow, but we all know that is just a semantic confusion. The physical word doesn't have purposes, only people do. In the long term - the next ten billion years, say - nothing about humanity matters at all, not least your own little wants and needs, your hopes and ambitions, your loves and hates. However, we don't live in the long term. We don't live ten billion years. We live tiny, proscribed little lives. We flicker into self-awareness and are gone in a moment.

Yet, to us, in that moment, our own feelings, desires, and purposes are everything to us. And that is important - by definition. We are the creatures who give meaning to the world. We are the ones who provide purpose to the Universe. We are the ones that imbue existence with value. While we live, while we think and feel, we bring this into reality. You and I create the meaning of the Universe, quite literally. It is ours.

So don't feel shy about the purpose of your life. If you want an iPod, if you love the boy or girl next-door, if you have a craving for a swim, or to work in outer space, each of these is, in a very real sense, the highest purpose in the world - because it's yours, right now, and that, literally, is what matters in this otherwise indifferent Universe.

5. Find out who you are and accept it. The biggest advantage of being clever isn't that you can make money, or design cool stuff, or argue everyone else under the table, it is this: you can understand yourself and the people around you. If you don't understand yourself, you will always be doing stupid things that don't make you happy. If you don't understand other people you cannot love them and you will always be doing stupid things that don't make them happy either. It took me a couple of decades of very hard work to get a deep and thorough understanding of myself and to accept who I am, warts and all. It was the most difficult intellectual challenge I have ever faced - the most difficult emotional challenge too - but it was worth it. Well worth it. It requires strict intellectual rigour. It requires ruthless, painful honesty. It may require you to throw out many myths about yourself and your world that you cherish and hide behind. Don't waste that glorious brain of yours. It's caused you a lot of pain and heartache, set you apart, driven people away. Now, for once, get some good out of it. Use it for something that will really benefit you and everyone around you.

6. Never forget what you are. You are a human being. You evolved from ape-like creatures, who evolved from other creatures. As clever as you are, you are still an animal. You have the physiology of an animal and, importantly, the psychology of an animal. The kind of animal you are has psychological needs for the company and intimacy of its fellow animals. You can't fight your own psychology so try not to. Being cut off from the society of people is what is making you feel bad. Going along with that and cutting yourself off even more will only make you feel worse. The smart thing to do is to understand your animal nature and to start organising your life so that its needs are satisfied. I'm not talking about sex and eating and sleep and all those other 'drives' - although they are important - I'm talking about social interactions, social approval, gossiping, sharing rituals, and finding friends. Right now, those things may seem a million miles away from where you are - but that's what all the points above are about, getting yourself into a societal niche where you fit, finding people who like having you around, ditching false notions that will add to your troubles, and becoming so comfortable inside your own skin that you can face the world on equal terms and get what you need from it.

It will always be the case that you are in a minority. Always. But you don't need six billion people to accept you. You can make a great life with just a handful of close friends and family who see the way you are as a desirable quality, not a freakish aberration.

Choosing Books for Children

Someone asking for recommendations for good speculative fiction for children and teenagers got me thinking. As a culture we tend to feed young people the most awful rubbish in this genre. I don't mean books that are badly written or poorly plotted, I mean unrealistic fantasy.

People picking books for youngsters tend to avoid sex and violence, quite reasonably, but will not balk at choosing a book full of unicorns or angels, talking animals and walking trees. Does anybody ever stop to wonder which will do more harm to a young mind, the reality of sex and violence, or the unreality of fantasy and religion? Truth? Or make-believe?

How can we expect children to mature into adults who can understand and cope with the real world if we feed them bizarre fantasy worlds and strictly-censored distortions? As a society we warn parents that TV shows might contain 'themes' - usually meaning the story deals with drug abuse, incest, torture, sex, or some other set of issues that many children could use our help in understanding. Yet there are no warnings for shows that involve magic beings (vampire stories, religious broadcasts, talking dogs, psychics, etc.), vigilanteism (Batman, for instance), or state-sanctioned violence (cop shows, P.I. shows, and war stories).

I'm sure that finding suitable books for children is hard but that doesn't mean we have to feed them the strange fare that currently passes for acceptable. Forgetting the complete abandonment of reality most of these stories represent, just consider the political statements that most fairy stories (and fantasy novels) make about the legitimacy of inherited power, or the complete abnegation of personal moral responsibility implicit in any story involving 'higher powers' (as gods tend to be called in fiction these days) who dictate or enforce moral absolutes.

We can't expect a world full of morally responsible, socially skilled, and politically sophisticated adults if we give our children unrealistic, nonsense to read.

Good on ya Joanna

I was born just ten years after World War 2 ended. I was raised in Hull in Yorkshire, a major fishing and cargo port and one of the worst-bombed cities in England. When I was a kid, my friends and I played 'Jerrys and English' in the bombed out ruins of buildings still not yet rebuilt. Every adult male I knew back then had been in the army or the navy. All my friends' fathers, and all their grandfathers too. My own paternal grandfather was bed-ridden all the time I knew him because of injuries sustained in the war.

I don't know how kids view war these days. I imagine they don't see it in the way we did. Since World War 2, wars have become shabbier and less honourable. The disgraceful invasion of Iraq makes even Vietnam seem marginally reasonable. Yet everyone I knew as a child was proud of what we did in World War 2. We had stood firm against oppression. We had saved the world from tyranny. We had been brave and strong.

And among all the many stories I heard in those days, of bravery and courage and skill, the stalwart loyalty and fierce bravery of the Gurkhas was often mentioned.

I think, like many other Brits, I was astonished to discover that Gurkhas who had served in the British Army Brigade of Gurkhas had no automatic right to settle in Britain on leaving the army. I was also shocked to discover that a sly deal at the time of Partition had left the Gurkhas with a reduced pension compared to other British Army servicemen.

For some years now, there has been a campaign to achieve better rights for Gurkha ex-servicemen. Small wins have happened from time to time but the big battle - for their right to settle in Britain - has only just been won. After a surprise 'first day motion' defeat for the Government (the first since 1978) the British Home Secretary, Jacqui Smith, announced that "All Gurkha veterans who retired before 1997 with at least four years service will be allowed to settle in the UK". As Nick Clegg, a UK politician quite rightly said, it was "a victory for decency" and "the kind of thing people want this country to do."

Certainly it is what people of my generation would want, people who heard the admiration and respect in the voices of our forebears when they spoke of the brave and loyal Gurkhas.

But there is still work to be done on the Gurkha's behalf. We still need to ensure that Gurkha Brigade veterans receive full pensions in the UK. But, as 'Gurkha Justice Campaign' lawyer David Enright says, "that is for tomorrow". Today, he and other campaign leaders - including figurehead and active campaigner Joanna Lumley, whose father was an officer in a Gurkha regiment - are celebrating yesterday's tremendous victory.