What inputs drive what types of behaviors in humans? This is a question I think about at an incredibly basic level all the time, but I don’t really hear much insightful discussion about this topic. We all like to believe we (and everyone else) is in complete conscious control of our thoughts, minds, and decisions, but we know that can’t be true. If you leave someone in a room with a plate of freshly baked cookies in front of them, they will almost invariably eat a cookie, even if they had woken up that day determined not to eat any cookies. If you deprive someone of sleep for a whole day while they travel across the country from Seattle to Orlando with multiple layovers and tired and cranky kids, you are bound to hear a few exasperated yells, even if that person was determined not to yell at their children (or anyone else). At a certain point, the inputs that make their way into our mind have a big influence on the resulting behaviors that we see in the world.
Norms are one way that we establish certain inputs associated with certain behaviors. They help us regulate what kinds of behaviors are acceptable and desired. As Kevin Simler and Robin Hanson write in The Elephant in the Brain, “The essence of a norm then, lies not in the words we use to describe it, but in which behaviors get punish and what form the punishment takes.” Norms are guidelines for nudging peoples behaviors by changing the inputs into their mind.
We can applaud, ignore, or punish a behavior to change the likelihood of an action taking place again. If I send out a tweet with terrible insults, and that tweet is re-tweeted and I receive encouragement for speaking out against the people I insulted, I am receiving cues that suggest I should do more of that. If however, I see an old lady walking to the register at the grocery store, and I use my youthful speed to quickly jump in front of her, I am likely to receive angry looks and possibly be forced out of line if a big enough person sees me jump ahead of the little old lady. If the punishment in this situation is embarrassing enough, I likely won’t repeat this behavior the next time I am at the store.
Our minds and, consequently it seems, our brains, are changed by the norms we use. What is possible in our wold is shaped by how we know other people will respond to what we do. The agency we feel when we think about the world is constrained by the thoughts, looks, and actions of other people. We rarely talk about all the inputs that may change our thinking and decision-making, but it is clear that we operate in a space where many physical and non-physical things can shape what we do, believe, and think. The mind absorbs many inputs and we are not always at liberty to decide how we will respond to those inputs if we are constrained or encouraged by certain norms.