80% of adults are overly optimistic about life—where does that cognitive bias come from?
There's one brain bias that affects 80% of adults and it has a familiar name you may not expect: optimism. Not always thought of as a cognitive mechanism, the optimism bias leads people to overestimate the likelihood of positive outcomes and to underestimate the likelihood of negative outcomes. It can be hugely helpful in our social lives and in keeping us motivated even if the trade off is, at times, the denial of reality. So where does this cognitive bias come from? Are we born with it, or do we develop it as we grow? Developmental psychologist Lori Markson compiles research about how optimism works in babies and young kids, and how that may help us to understand why we adults are the way we are. This video was filmed at the Los Angeles Hope Festival, a collaboration between Big Think and Hope & Optimism.
When it comes to climate change, gun control, and vaccinations, facts don’t change people’s minds—but there is one technique that might.
If you want someone to see an issue rationally, you just show them the facts, right? No one can refute a fact. Well, brain imaging and psychological studies are showing that, society wide, we may be on the wrong path by holding evidence up as an Ace card. Neuroscientist Tali Sharot and her colleagues have proven that reading the same set of facts polarizes groups of people even further, because of our in-built confirmation biases—something we all fall prey to, equally. In fact, Sharot cites research from Yale University that disproves the idea that the social divisions we are experiencing right now—over climate change, gun control, or vaccines—are somehow the result of an intelligence gap: smart people are just as illogical, and what's more, they are even more skilled at skewing data to align with their beliefs. So if facts aren't the way forward, what is? There is one thing that may help us swap the moral high ground for actual progress: finding common motives. Here, Sharot explains why identifying a shared goal is better than winning a fight. Tali Sharot's newest book is out now: The Influential Mind: What the Brain Reveals about Our Power to Change Others.