The Dark Knight

I watched The Dark Knight in a crowded cinema a few weeks after it opened. Before the film, the room behaved like any summer blockbuster audience: popcorn, conversation, people searching for seats, someone arriving after the lights had dimmed.

Then the Joker began conducting experiments.

The room gradually became quiet.

What interested me was not chaos by itself. Chaos in movies is easy to create: explosions, crowds, destroyed buildings. The Joker is more disturbing because he treats moral claims as hypotheses.

People say they are civilized.

Test the claim.

People say they will not sacrifice an innocent person.

Change the incentives.

People trust institutions.

Apply enough fear.

He does not need to prove that everyone is evil. He needs only to show that principles become negotiable under pressure.

That is an uncomfortable idea because most of us judge ourselves in good weather.

Generosity is easy when nothing important must be given up. Respect for rules is easiest when the rules protect us. Courage is impressive partly because fear creates a real alternative.

Batman himself cannot escape the experiment. He wants to protect a legal order while repeatedly stepping outside it. The contradiction is built into the character.

If the law cannot stop someone, how far outside the law may a defender go?

If surveillance prevents violence, does usefulness make surveillance right?

If truth will destroy public trust, is a lie justified?

The film refuses to keep those questions inside comic-book simplicity.

Harvey Dent is therefore essential. He begins as the hopeful possibility that Gotham may not need a masked exception forever. Lawful courage could replace private vigilantism.

Then pain destroys his confidence in moral order.

His answer is chance.

A coin is attractive because chance removes responsibility. If the outcome belongs to probability, the person no longer has to own the choice.

I remember the ferry sequence more clearly than most of the action. The Joker constructs a social experiment and expects strangers to confirm his theory.

They do not become saints.

They argue, fear, hesitate and imagine doing the terrible thing.

Then they do not do it.

The cinema was completely silent.

That scene has stayed with me because restraint is difficult to dramatize. Destruction produces images. The decision not to destroy often leaves nothing visible.

Years later, during an argument at work, someone sent an angry email to a group and then immediately tried to recall it. The recall failed. We laughed later, but I remember thinking how many conflicts would be different if the unsent message were easier to appreciate than the sent one.

The most important action is sometimes the action that never occurs.

The Joker understands spectacle.

The ferries remind us that morality may happen without one.