Antisocial Contract: Simple Version

TL;DR

People trade independent judgment for belonging. Once that trade is made, the group’s contested beliefs become sacred: questioning them triggers threat responses instead of thinking, and offering reasons or money to soften them makes people angrier, not more flexible. Intelligence doesn’t help — it gets repurposed to defend the sacred belief more cleverly. Leaders get trapped too, because the constituency that internalized the message will replace anyone who tries to walk it back. The groups that play this hardest win local fights against the groups that don’t — and in winning, they tear down the shared institutions that make any of them viable. This is the antisocial contract: an unspoken bargain that buys you a place in a tribe at the price of your ability to reason in exactly the domains where reasoning matters most.

Want the full argument? Case studies (Cold War, Yugoslavia, MAGA, personality cults, failed states), neural evidence, and the complete reference list are in The Antisocial Contract (the long version).

The Big Idea

You’ve watched this happen. A friend who used to be reasonable hardens into a partisan. A coworker who was funny becomes a brand. A country that seemed unified starts tearing itself apart. Each time, the same trick is running underneath: your brain quietly decides which side you’re on, then recruits your reasoning, your memory, and your sense of fairness to defend that side.

This isn’t always bad. Liking your team can make you work harder together. But once it goes too far, smart people start doing stupid things — confidently, and in groups. The hard part to accept: it works on you too, and it works better the smarter you are.

How It Works

Step 1: Making Teams

If you split people into teams — even by something silly like flipping a coin — they immediately start favoring their own team. Scientists tested this. People gave more points to their own team members even when they’d never met them and the teams meant nothing (Tajfel et al., 1971).

Your brain is built to do this. It’s not something you choose.

Step 2: Some Teams Feel More Important

Some groups feel more important than others. Your family feels more important than “people who like the same ice cream flavor.” Religious groups, countries, and political parties often feel really important because they’re connected to big questions like “who am I?” and “what matters?”

When a group feels important, it gets harder to leave. It becomes part of who you are.

Step 3: The Team Becomes Part of You

Sometimes people get so attached to their group that they can’t tell the difference between “someone insulted my group” and “someone insulted me.” It feels the same. Psychologists call this identity fusion, and they’ve measured it directly: when fusion is high, attacks on the group register in the brain the same way attacks on the self do (Swann et al., 2012).

When this happens, any criticism of the group feels like a personal attack. Your brain switches from “let me think about this” to “I need to defend myself.”

And this isn’t rare. Researchers have measured fusion in weekend football fans, military recruits in boot camp, ordinary religious converts, regular Harley-Davidson owners, and run-of-the-mill American voters. The same pattern shows up in all of them. In one study, 45% of Libyan combatants felt more fused with their unit than with their own family (Whitehouse et al., 2014). In Brazil, the most fused football fans were the ones most willing to fight or die for the club (Newson et al., 2018). The wiring is the same in everyone. Context just changes the volume.

Step 4: Ideas Become Untouchable

Once something becomes important to your group’s identity, your brain stops treating it like a normal idea. It becomes sacred — not in a religious way necessarily, but in a “you can’t question this” way.

Scientists offered people money to change their minds about things they cared deeply about. Instead of weighing the offer, people got angrier. Money made them more stubborn, not less (Ginges et al., 2007; Atran & Ginges, 2012). The belief had stopped being something they were holding for reasons; it had become part of who they were.

Step 5: Smart Doesn’t Help

Being smart doesn’t protect you from this.

In fact, smarter people are often better at defending beliefs they already have. The extra horsepower goes into finding clever reasons why they’re right — not into checking whether they actually are (Bayrak et al., 2025).

Step 6: You Can’t Back Down

Once a whole group believes something is sacred, nobody can back down — even the leaders.

Politicians run into this constantly. They sometimes know they should compromise, but they can’t, because their supporters would replace them with someone who won’t. Interviews with Israeli and Palestinian leaders found exactly this pattern: leaders understood symbolic concessions as a path to negotiation, but their constituencies’ sacred commitments made those concessions politically suicidal (Atran et al., 2007).

The Trap

This “us vs. them” thinking actually works for groups trying to compete with each other.

Groups that are tight and suspicious of outsiders tend to:

Stick together better
Work harder for the group
Have more kids who stay in the group
Beat groups that are more relaxed and open

So groups that think this way win against groups that don’t (Iannaccone, 1994; Norenzayan, 2013).

The Catch

What helps a group beat other groups destroys the bigger community that all the groups live in. A group that breaks shared rules to outcompete its rivals gets a local advantage. If every group does the same, the shared space stops functioning, and the only winners are the groups that played hardest before it collapsed.

What’s good for one team is bad for everybody. E.O. Wilson put a more general version of this: “Selfish individuals beat altruistic individuals. But groups of altruistic individuals beat groups of selfish individuals.” (The multilevel selection section of the full version has the supporting evidence.) Open-minded groups lose to closed-minded groups, but communities full of open-minded groups do better than communities full of closed-minded ones.

The Referee Problem

Sometimes there are rules or bigger organizations that stop groups from fighting too much. Countries have laws. International agreements. Courts and elections. These act as referees: they keep the game fair so everyone can play.

The groups that would win if there were no referee have every reason to get rid of the referee. This is why some politicians attack international organizations, courts, or elections themselves. The referee is what’s preventing the win.

Teams that would win without rules have every reason to destroy the rules.

Real Examples

When Countries Fall Apart

In 1990, families in Sarajevo went to each other’s weddings. They were Serb, Croat, Muslim, and the labels didn’t carry much weight. By 1995, those same neighbors were stockpiling weapons against each other, and over 100,000 people were dead.

Yugoslavia wasn’t destroyed by ancient hatreds erupting from the soil. It was destroyed in about three years, by a small number of politicians who figured out that if you keep telling people the other group is coming to kill them, eventually they will believe you — and act on it. The hatred came after the speeches, not before (Gagnon, 2004; Malešević, 2024).

When Smart People Believe Silly Things

In 1948, Soviet biology officially declared Mendel’s genetics a Western fraud. Geneticists who disagreed lost their jobs, or worse. Crops failed. Famines followed. Meanwhile in America, J. Robert Oppenheimer — the physicist who built the atomic bomb — was stripped of his clearance for the crime of expressing doubt about building a bigger one.

Both sides had genius-level scientists, and both produced confident, technical, well-argued nonsense on the questions where their team’s identity was at stake — the Soviets about wheat, the Americans about Soviet missile counts they kept inventing. When a question is bound to who you are, your intelligence stops working for you and starts working for the team (Schrecker, 1998; Soyfer, 1994).

When Slogans Beat Policies

In the summer of 2020, two pollsters asked Americans about the same idea, worded two ways. As a policy — “move money to better training, homelessness programs, and mental health” — 76% said yes. As a slogan — “Defund the Police” — only 21% said yes. The exact same policy, described differently, lost a majority and gained a backlash (Saletan, 2020). Same idea, different team signal, totally different reaction.

The people who invented the slogan could see the polling, could see the elections it was losing them, could see the harm to their own goals — and still couldn’t drop it. By then it had become sacred to enough of their own supporters that walking it back was treated as betrayal. A three-word phrase was now in charge of a policy agenda that polled 17 points better without it.

Why This Matters

This isn’t a story about one group being bad. The same trick runs underneath religious schisms, partisan politics, national rivalries, even sports fandom. The content changes; the mechanism doesn’t.

What you stand to lose to it:

The ability to tell whether you believe something because it’s true or because it’s yours.
Friendships, family relationships, and working partnerships that don’t survive the sorting.
A country, eventually — if the sort goes deep enough and the referees get torn down.

The full pattern, in six steps:

Make a team.
The team becomes important to who you are.
The team’s ideas become untouchable.
Smart thinking gets used to defend the ideas, not question them.
Leaders get trapped by their followers.
Everybody loses — except the team that happened to be on top when it all broke.

Can We Fix It?

Not easily. Some ideas that might help:

Notice when it’s happening. Just knowing about this trick makes you a little more resistant to it. Ask yourself: “Am I thinking about this, or just defending my team?”
Have friends in other groups. It’s harder to see another group as evil when your friend is in it.
Change the rules. Some countries use voting systems that make it harder for just two teams to form. When there are many teams, you have to work together instead of just beating the other side.
Protect the referees. Courts, elections, free press, international agreements — these are the things that stop groups from destroying each other. When someone attacks them, ask: “Would this person win if the referee was gone?”
Make it safe to change your mind. In a lot of groups, changing your mind looks like betrayal. But being able to say “I was wrong” is actually a sign of strength, not weakness.

The Bottom Line

Your brain is built to join teams and fight for them. This kept your ancestors alive in a world of a few hundred people. We don’t live in that world anymore.

Now we have to cooperate with millions of people we’ll never meet. The old team-fighting instinct, scaled up, doesn’t protect us — it eats the things that do: laws, elections, courts, science, neighbors. The groups that win the team-fighting game are the ones that play it hardest, which means the mechanism only sharpens over time.

The one thing it doesn’t survive well is being seen clearly. When you can name what’s happening to you — when “they want to silence us” registers as a move in a known game rather than the truth about the world — the trick starts losing power. Notice when your team has just handed you a sacred belief, ask whether you’d hold it if the other team held it first, stay friends with people the team tells you to hate, and defend the referees, especially when they’re calling fouls on your side.

None of this is easy. All of it is cheaper than the alternative.

This is a simplified version of “The Antisocial Contract.” The full version has the complete argument, additional case studies, and the full reference list.