Chapter Eleven - How to Think Three Moves Ahead in Real Life

CHAPTER ELEVEN

How to Think Three Moves Ahead in Real Life

IMAGINE LIFE AS a game.

Now imagine every person you know—your boss, your ex, your grandma, your dog—has their own rules, strategies, and hidden goals.

Welcome to game theory.

Originally developed to understand competitive strategies in economics and warfare, game theory now shows up in everything from dating apps to international politics. This chapter? We're going to show you how you can use it to win.

Game Theory 101

Game theory is the mathematics of decision-making—especially when multiple people (or “players”) are involved.

A “game” in this context is any situation where the outcome depends not just on your own choices, but also on what someone else chooses.

You + Others = Game
Strategy + Prediction = Victory

In game theory, the world is full of prisoners’ dilemmas, zero-sum games, Nash equilibria, and all kinds of juicy logic traps.

Let’s break ‘em down.

The Prisoner’s Dilemma

(aka Trust Fall Theory: Math Edition)

Two criminals are arrested. If both stay silent, they each get 1 year.
If one rats and the other doesn’t, the snitch goes free and the other gets 5 years.
If both snitch, they each get 3 years.

So what’s the rational move?

Snitching gets you a better deal no matter what the other guy does.
But if both act “rationally”…
You both lose.

Lesson?
Trust beats logic—when both people are in on it.

This is the mathematical backbone of cooperation. It’s why loyalty matters. It’s why burning bridges burns you, too.

Nash Equilibrium

(aka Nobody’s Happy, But Nobody Can Leave)

A Nash Equilibrium is a situation where no player can benefit by changing their decision—as long as everyone else keeps theirs the same.

Example: You and your friend always split pizza and wings. You don’t love wings, but they really hate pizza. You both stick to the same order every time, because changing would only hurt the outcome.

It’s not ideal, but it’s stable.

Life lesson?
Sometimes equilibrium isn’t optimal—it’s just what happens when no one wants to rock the boat.

Zero-Sum Games

(aka If I Win, You Lose)

Classic example: Chess. There’s one winner, one loser. One pie, one slice per person.

Politics, lawsuits, sports?
Zero-sum.

Love, collaboration, invention?
Not zero-sum. Those can be win-win.

Life lesson?
Know which game you’re playing. Not everything has to be a competition. If you play a non-zero-sum game like it’s war, you both lose.

Game Theory in the Real World

• Dating apps? Maximize appeal, minimize risk.
  (Swipe left = passive rejection. Swipe right = asymmetric information exchange.)
• Business negotiations? Strategic bluffing, timed reveals.
  (Sometimes, walking away increases value.)
• War? Mutually Assured Destruction is literally a Nash equilibrium.
• Family dinners? Yep. Game theory.
  (“If I bring up politics, Grandma will cry, Uncle Joe will yell, and I won’t get dessert.”)

The Meta-Game

The real trick isn’t playing the game—it’s changing it.

You don’t just want to win at Monopoly.
You want to be the guy who invented Monopoly and now collects royalties.

“You can’t win if you’re playing by the wrong rules.”
—Someone smarter than whoever made Monopoly

Final Thought:
Life’s not one big game.
It’s a tangled jungle of overlapping games, each with different rules.

Win too much in one? You might lose another.
Ignore the game entirely? You might be a pawn without realizing.

But master applied game theory?
You stop being a player.

You start becoming the one who writes the rules.