The human brain evolved in a social and political context. As our species developed, it mattered who you were close allies with, who you were opposed to, and who you cooperated with to survive. You needed to build up your social support to survive each day, but you also needed to build up your status so that your offspring and their offspring could survive and reproduce. Genetic survival and continuation of your genes and family depended on you being able to operate and survive in coordination with others in a world that didn’t have enough food, shelter, mates, and resources for everyone to survive all the time.
As our species expanded, our brains got bigger, took up more of our energy, made us smarter, and helped us further develop our social, political, tribal societies. In order to do well in these tribes, we had to be good at helping others in a way that furthered others’ trust in us and encouraged reciprocation. We had to appear to be helping others while at the heart of what we did, we wanted to ensure our survival and the survival of our children.
This idea is at the heart of The Elephant in the Brain by Kevin Simler and Robin Hanson. We evolved to be self-interested and self-serving, but in a deceptive way that is hard to notice. The authors write, “Here is the thesis we’ll be exploring in this book: We, human beings, are a species that’s not only capable of acting on hidden motives–we’re designed to do it. Our brains are built to act in our self-interest while at the same time trying hard not to appear selfish in front of other people.”
We hide our hidden motives from everyone, including ourselves, as we go about the world, but if we look closely, we can find the motives in ourselves and others that more accurately describe our decisions and behaviors. We post a photo on Facebook telling ourselves and others that we want to keep our friends up to date with our new house projects, but a more plausible reason for posting on Facebook is simply that we wanted to show off and be socially applauded. We like to donate to charity in the spirit of helping those who are in need, but we often fail to ask where we could make a donation to help the most people, and we are good at finding ways of making our donation very visible so that everyone knows what we donated.
These hidden motives are not all bad, but they do exist and in many ways drive our behavior. We need to be aware of our hidden motives and our capability of acting on them. When we are honest with ourselves about why we do what we do, we can start to have more agency in our lives and the choices we make. We can start to see that much of what we do is purely status seeking behavior, and we can ask ourselves if it is truly worth it or if we can step back and let go of our hidden motives on a case by case basis. We can shape policy in a way that redirects externatilities from our hidden motives toward positive outcomes rather than toward negative self-serving outcomes. We don’t have to evolve away from hidden motives to meaningfully engage with the world, but we should recognize them and do our best to prevent negative hidden motivations from driving our emotions, behaviors, and decisions.