Self-Deception, False Beliefs, and the Origins of the Human Mind
Publication Date: June 4, 2013
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The history of science abounds with momentous theories that disrupted conventional wisdom and yet were eventually proven true. Ajit Varki and Danny Brower's "Mind over Reality" theory is poised to be one such idea-a concept that runs counter to commonly-held notions about human evolution but that may hold the key to understanding why humans evolved as we did, leaving all other related species far behind.
At a chance meeting in 2005, Brower, a geneticist, posed an unusual idea to Varki that he believed could explain the origins of human uniqueness among the world's species: Why is there no humanlike elephant or humanlike dolphin, despite millions of years of evolutionary opportunity? Why is it that humans alone can understand the minds of others?
Haunted by their encounter, Varki tried years later to contact Brower only to discover that he had died unexpectedly. Inspired by an incomplete manuscript Brower left behind, DENIAL presents a radical new theory on the origins of our species. It was not, the authors argue, a biological leap that set humanity apart from other species, but a psychological one: namely, the uniquely human ability to deny reality in the face of inarguable evidence-including the willful ignorance of our own inevitable deaths.
The awareness of our own mortality could have caused anxieties that resulted in our avoiding the risks of competing to procreate-an evolutionary dead-end. Humans therefore needed to evolve a mechanism for overcoming this hurdle: the denial of reality.
As a consequence of this evolutionary quirk we now deny any aspects of reality that are not to our liking-we smoke cigarettes, eat unhealthy foods, and avoid exercise, knowing these habits are a prescription for an early death. And so what has worked to establish our species could be our undoing if we continue to deny the consequences of unrealistic approaches to everything from personal health to financial risk-taking to climate change. On the other hand reality-denial affords us many valuable attributes, such as optimism, confidence, and courage in the face of long odds.
Presented in homage to Brower's original thinking, DENIAL offers a powerful warning about the dangers inherent in our remarkable ability to ignore reality-a gift that will either lead to our downfall, or continue to be our greatest asset.
"This is perhaps the most exciting idea in evolution that I have read since Darwin. Danny Brower's manuscript survived his untimely death and how it came to Ajit Varki's hands is an evolutionary story in itself. Varki is a renowned physician-scientist, and what Ajit is doing is to take this manuscript and reworking it, producing a work of beauty and simplicity. It is the tale of the very thing that makes us human. A marvel."
-Abraham Verghese, Author of Cutting for Stone
"Groundbreaking new ideas often come from the most unexpected sources. Here is such an instance, wherein two scholars from disparate disciplines unrelated to human origins have come up with a completely novel theory--to explain one of the most fundamental of human questions: where did we humans come from, and how did we get here? A must read for anyone interested in this age-old quest."
-Peter Agre, Nobel Prize in Chemistry, Johns Hopkins Bloomberg School of Public Health
"A highly readable manifesto for anthropogeny (the study of human origins), DENIAL is written in a lively and engaging style that communicates the excitement of asking the big questions: how are humans different from all other species, and why did other species not evolve a full theory of mind, given the wide-ranging benefits that this brings to humans? Issuing a provocative challenge to future scientists, Ajit Varki's scholarly journey leads him to speculate about the role of our awareness of our mortality, and our simultaneous tendency to live in denial of it."
-Simon Baron-Cohen, director, Autism Research Centre, Cambridge University
"This book answers the never-ending quest of what sets our species apart with a delightful suggestion. It is not so much our awareness of mortality that is special, the authors claim, but rather our ability to push this awareness to the farthest recesses of our minds. The ostrich has nothing on us."
-Frans de Waal, author of The Bonobo and the Atheist
"Quite a book, with a revolutionary point of view that I find critically interesting. An enormous effort--an intriguing message and a major contribution."
-Roger Guillemin, winner of the Nobel Prize in Medicine
"A tremendously engaging story-full of human interest, wit, scientific detective work, and imaginative speculation. It's great to see Varki and Brower pushing the limits. It makes us fellow-travellers into the field of the known unknowns."
-Nicholas Humphrey, Author of Soul Dust and The Mind Made Flesh
"I found DENIAL intriguing at first, while perusing it. It soon became fascinating as I started to read it in earnest. I have long held that once they acquired the advanced intelligence characteristic of Homo sapiens, our ancestors became aware of their mortality. Anxiety about death leads to belief in the afterlife and other religious and ethical tenets. That is what I had learned from philosophers, theologians, and others. DENIAL turns these ideas on their head. DENIAL forcefully argues that it was awareness of mortality and its ensuing denial that prompted the evolution of our exalted intelligence. Original, engaging, and beautifully written."
-Francisco J. Ayala, University Professor and Donald Bren Professor of Biological Sciences at the University of California, Irvine; recipient of the National Medal of Science and the Templeton Prize, author of The Big Questions: Evolution
"A magnificent scholarly work, both in terms of the science and the manner in which Varki has ethically tackled a gigantic path opened up by Brower. Wherever one dips into it, one gets involved almost immediately in some fascinating question. A superb book."
-Derek Denton FRS, University of Melbourne, author of Primordial Emotions
"Engaging and intellectually exciting. Almost as fascinating as the novel ideas of Brower on the evolutionary origins of a distinctly human consciousness is Varki's story of how he stumbled upon them, and became preoccupied with their potentially profound implications about what differentiates humans."
-Sanjay Nigam, author of Snake Charmer and Transplanted Man
"A surprising and stimulating book that explores a deep insight into those psychological innovations that make us human."
-Peter Lawrence, Cambridge University, Darwin Medalist of the Royal Society
"A gifted scientist with an encompassing humanitarian vision, Ajit Varki suggests that our blithe but false supposition that we will just go on living, day after day, is an evolutionary adaptation--one that has played a crucial role in the evolution of the human brain. Clear, cogent and compelling, DENIAL makes you ponder our habitual death-denial and why it is so robust. Does this hypothesis convince me? I am constitutionally a tough sell, especially when it comes to big ideas. Still, I do take this one very seriously. The more I kick its tires, the more sturdy it seems."
-Patricia Smith Churchland, MacArthur Fellow, University of California Presidential Professor of Philosophy, author of Braintrust: What Neuroscience Tells us About Morality