Applied Case: The Prisoner's Dilemma

The Prisoner’s Dilemma is a famous game-theory problem about two people choosing whether to cooperate or defect. Once again, I am not a fan.

This case represents to me the place where game theory most clearly went wrong in its interpretation of the ludic tradition. It's not that they got the model wrong, it's that with the Prisoner's Dilemma, they exported a highly sealed and unbalanced toy-field into actual extance, with real-field costs.

The usual version of the dilemma is simple: Two prisoners are separated.

Each can stay silent or betray the other.

If both stay silent, both receive a moderate sentence.

If one betrays and the other stays silent, the betrayer goes free and the silent prisoner receives a heavy sentence.

If both betray, both receive a bad sentence, though not the heavy one.

The common lesson game theory wants to teach you is that defection is rational, so great ethics lesson already, guys. I am already incredibly skeptical of your mission here.

This "ethical lesson" is effective defection from extance itself, and openly irrational. Also, irrational in the dilemma, too, if it hadn't been stripped to describing literally nothing but math.

I am not a big fan of these toys. Please stop doing abstract math and acting like it represents real, live, moral fields. The rest can probably stay.

Because, in the Prisoner's Dilemma, no matter what the other person does, betrayal mathematically appears to always give the individual prisoner a better result.

This is not some mathematical structure we discovered. This is a pretty bad game built by two guys in the 50s, and this dilemma even existing in a form like this has real life consequences, like big, serious ones. People out there think this little toy they made describes their real fields.

Please stop doing ethics work so irresponsibly. This kind of behavior is why I had to get involved, personally.

In the Prisoner's Dilemma game, if the other prisoner cooperates, defecting gives the defector the highest payoff.

If the other defects, defecting protects the player from being the sole victim.

So the math says you always defect.

This conclusion is also so, so, so much less impressive than people act like it is. This is actually, no exaggeration, pretending algebra is ethics. That actually only works when the subject is already algebra. There are still some arguments for commensurability, but not like this.

The Prisoner’s Dilemma proves that defection is locally payoff-dominant under a highly, artificially sealed scoring condition, invented by game theorists in the 1950s who did not understand their true mission.

It does not prove that defection is rational in any morally serious sense in any real field. It should not be discussed in popular discourse as often or in the way that it is, at all.

It proves that if a toy is designed so poorly, such that individual betrayal always scores higher at the immediate decision point, then individual betrayal scores higher at the immediate decision point.

Congratulations to the toy.

That's sarcastic, if you can't tell, because a lot of people have wound up in much worse fields in real life because of this little toy seeming like an intuition they picked up along the way. Our real field is now worse, because of this toy.

The obvious result of mutual defection in the broken toy degrades mutual cooperation in our actual extance, so thank you, 1950s geniuses.

That is the entire dilemma you have created, and it is no longer a toy, but a real life meta-dilemma.

Each agent in your toy follows the locally dominant move you forced, and together they objectively produce a poorer shared field.

So your ethics are apparently mathematically designed to degrade the consistency and longterm health of the field in which they are enacted. This is beyond just bad ethics, now. The greatest ethical minds of the 1950s have now introduced a new category:

Evil Ethics.

When you play the Prisoner's Dilemma, trust collapses. Cooperation becomes less reachable.

Each player protects themselves against the other’s defection by making the feared field real, when they never had to at all. This is mutually reinforced field damage, not rationality of any kind.

The mistake is treating the prisoner as if they are only a payoff selector in a "math game". They are not.

The prisoner is always an extant agent inside a shared field. Their move does not just produce some number for a game theorist to write down. Their decision always changes the relation between agents, the future reachability of cooperation, the expectation structure, the resistance profile, and the kind of world the players are now helping build, including you, in real life.

Defection may now be sold to us as rational because the toy hides almost everything defection damages. This broken toy's distortive moral lesson now produces its defection and field collapse in our actual extance.

This toy hides trust. It hides reputation. It hides future interaction. It hides self-formation. It hides institutional learning. It hides the fact that a world full of defectors is a worse world to inhabit, morons.

It hides the extant field. Can someone please explain why that is anything other than an incredibly distortive compression as a one-shot?

This is the same trick the Trolley Problem pulls, but that one at least works to show structure. This one just serves as proof that math != rationality, it turns out.

Remove the field, lock the agent in a tiny room, force the available options into a stylized shape, then announce that the result reveals anything even like moral truth. This is apparently a job that counts as ethics work.

What you actually did is solve a basic math problem I could also handle when I was a child. That still technically reveals something, but not anywhere near as much as you have advertised, 1950s philosophers.

A real agent does not live inside your little payoff matrix.

A real agent, in the real world you also share, lives among other agents who remember, adapt, retaliate, forgive, imitate, withdraw, cooperate, punish, teach, and build institutions around what they expect others to do.

The defection this toy is trying to sell the world on is not only some extraction of local advantage. In the real world, that is also a signal. That tells the field that cooperation is less safe here.

What a great effect you bring to our field. What wonderful locus you are, Prisoner's Dilemma. I keep wanting to call this is an example of openly evil ethics, and have now made that the header, and that word isn't really a part of this framework, so I am clearly very subjectively displeased here.

Once that distortive signal spreads, now every future cooperative path has thickened with resistance, because of these two guys creating a stupid, defective toy they got way too excited about.

The field, our extant one, becomes more expensive to play because one local move has made trust less reachable.

That move was ever inventing the Prisoner's Dilemma in this form and allowing it to go beyond game theory. That field damage is the real cost of defection, in and out of this little toy distortion.

The common defense says: but in the strict one-shot case, there is no future.

Yes. This is where the toy became ridiculous and distortive when it was smuggled into life. The one-shot is indefensible as a description of any real moral field. Human beings almost never know if they are in a true one-shot field. Even when they are certain they will not meet the same person again, their move still forms the agent, affects the victim, shapes institutions, changes records, and trains the player’s own future conduct.

“No future interaction” is not the same thing as “no future.” Time is. It all continues. The world into which the action was released continues. This one-shot game is not our one-shot extance. It can barely describe anything actually inside it except itself.

If the toy stipulates that none of this exists, then fine: it has stipulated away the moral field on which it can ground literally any ethical conclusion. Do not then call it ethics work relevant to real fields. It is a bad toy. Extance is not compressible into a toy that does not include anything even resembling a field.

Within that sealed toy, defection is instrumentally dominant, by design. It did not have to be. That does not make defection rational in the larger sense in any field that extends beyond just the stripped toy.

That only means the scoring system the designer implemented was built to reward narrow extraction.

Those two designers who I won't name were therefore incompetent if the goal was to learn anything about structural reality through this game itself, or really do even very much at all beyond greatly damaging the field we all share, and creating a distortive foundation for others to waste time trying to build on when they could be looking elsewhere.

I will never accept this as the definition of rationality.

Rational action should preserve playable extance where possible.

It should not treat the shared field as disposable background for local advantage in a toy game you made up in your head.

Cooperation is not sentimental.

Cooperation is the strategy that preserves the most possibility of future non-destructive play. This does not mean cooperate with every predator forever. I am not stupid.

If another agent repeatedly defects, cooperation may become self-erasure.

Protective pruning, refusal, enforcement, and withdrawal may become Better.

I am not asking anyone to be farmed by exploiters while reciting my special friendship slogans. That is not the same as saying mutual defection is structurally rational. Do not say that to anyone. That is itself very harmful to any live moral field you introduce your "logic" into. You are clearly irrational if you do this.

What this toy they were so proud of really means is that cooperation requires a field where cooperation can remain reachable. That's it.

I am actually fully confident I could have figured that one out without the prisoner's dilemma ever existing, thank you. There is not really any intellectual debt here. This locus was a mistake.

The Ruling.

Defection in the Prisoner’s Dilemma is not rational in any morally serious sense. Anyone who presents the one-shot Prisoner's Dilemma to decribe defection as rational in their field is not being morally serious.

Defection is locally advantageous under a blatantly unbalanced toy model that hides the shared field it always damages, and never should have been used in the ways it was.

It protects the player of its special little game by helping create the very world the player is afraid of: a world where trust is unsafe, cooperation is fragile, and every future path requires more resistance to reach. That world is now moreso our own, in part because of two over-excited game theorists.

Mutual cooperation, even in this broken toy, preserves a better field, and requires less people to suggest blatantly harmful ethics in the endless pursuit of local advantage, as if the field is fictional.

Mutual defection proves only that agents can be clever enough to lose the game together. What a wonderful ending to the Extance Strategy Game this toy suggests to us.

The real lesson of the Prisoner's Dilemma is that any definition of rationality that makes mutual ruin look smart is stupid, and has already defected from the field we really exist in. This one should be carefully pruned from the thought-space if it cannot be repaired.

Bringing the one-shot Prisoner's Dilemma into any real moral field is actively harmful and degrades that field. Misused game theoretic technology is highly distortive.

The Real Ruling.

While calling this "Evil Ethics" may be a fun narrative framing for me, that doesn't actually describe the real field, if I am being honest.

Much of this article portrays a pretty open distortion of what game theory itself really is and what the Prisoner's Dilemma is actually used for in its proper field, even if the argument remains the same regarding the Prisoner's Dilemma in isolation and in public, which is exactly the problem with the Prisoner's Dilemma. The real field here is, as always, more complex than any slogan, algorithm, or one nested locus' compression.

Game theory as a discipline is certainly not evil “defection propaganda”; it also contains iterated games, cooperation results, evolutionary game theory, mechanism design, and contractarian uses like Gauthier’s constrained maximization that I hinted at above, where rational agents adopt cooperation-preserving dispositions because straightforward maximization clearly traps them in worse collective outcomes. There are much better games in game theory, and the ludic tradition isn't quite as utterly dead as I have expressed before, just not anywhere near as alive as it should be, and still too often framed around trying to hybridize ethics with mathematics instead of taking full advantage of this mode of cognition.

The one-shot Prisoner’s Dilemma is still harmful when treated as a moral model of real fields, because it defines rationality inside an artificially sealed payoff matrix and then exports that result into extance, where trust, repetition, reputation, self-formation, institutional learning, and future cooperation all remain active. Harmful is a better word than Evil, even if it may meet subjective criterion.

Evil is not a fundamental category of Modal Path Ethics. Game theory isn't actually evil or an enemy of me or this framework. The one-shot Prisoner's Dilemma in its current status as an extant locus, however, definitely is one.