Useful Delusions: The Power and Paradox of the Self-Deceiving Brain is the fascinating new book from Shankar Vedantam, longtime science correspondent and host of the radio podcast Hidden Brain, and co-written by science writer Bill Mesler, which posits that a certain amount of delusion is essential for our well being and our will to live. It builds on ideas from The Hidden Brain and explores the frequent utility, and occasional necessity, of intuitive and nonrational thinking. Not only are we delusional, we actually evolved that way via natural selection because cheerful blindness about some aspects of life helps us survive better. The classic example is something like climate change, right? The evidence for climate change is quite dramatic, quite persuasive. It comes to us from different fields of study: environmental science, pollution studies, oceanography, the study of the Arctic and sea life and species decline. There are just so many different ways in which you can see how climate change is affecting us. And yet, vast numbers of people either don't believe in climate change, or if they believe in it, they don't act as if they believe in it. It doesn't actually change their behavior. And we keep acting like that the 367th study is going to convince people when the first 366 studies have not.
Much of the time, our behavior is not shaped by what is rational; it’s shaped by habits, by norms, by our cultures, by our beliefs. These are the things that are powerful in shaping our views. So if you want to fight climate change, you have to be able to enlist those beliefs, which are not necessarily the domain of the logical, rational brain. We may need to use older, emotion-based systems to accomplish those goals. Many interesting and unsettling examples are given to prove their point, including how our response to the question “how are you?” is quite often dishonest but that the asker really wasn't looking for an honest answer. In the late 1980s, a group known as ”The Church of Love” sent affectionate letters allegedly from anguished young women to lonely men, many of whom not only invested substantial time and effort writing back but who also sent substantial amounts of money. At the trial of the mastermind, many of the victims, despite being informed of the facts, passionately defended him. They also address the placebo effect which makes for intriguing reading and the delusional facade people portray on social media. Its well known that those more in touch with what is realistically happening across the world are more depressed than those who delude themselves into thinking that everything is okay. I can certainly attest to the fact that being a realist can impact not only your mental health but physical too.
Whether we are talking about religion, relationships, medicine, or commerce, the ways in which our brains trick us (or lead us to be easily tricked by others) can certainly be harmful or even deadly. We also harshly judge others for being so easily tricked. But crippling existential dread is not conducive to human flourishing, even if it constitutes the last word in "getting real" or "being truthful." Many of our useful delusions can promote our health and our well-being in numerous ways, and the writers argue that this is profoundly important. They maintain that some deceptions are functional and enable us ”to accomplish useful social, psychological, or biological goals. Holding false beliefs is not always the mark of idiocy, pathology, or villainy.” What follows is an urging for everyone to be compassionate and consider others' perspectives even if they seem irrational, illogical or untrue. Referencing both historical resources and popular culture, the authors show how the lies we tell are often societal niceties. This is a fascinating read that is accessible and extensively researched and it's interesting to see a meditation on the positive side of delusional thinking and a well-constructed counter argument to those books that explore the downside of self-deception; I tend to agree with most of what was presented. It's an engaging, ingenious and deeply convincing account of why people believe stupid things. Highly recommended.