Show threadMathiasTCK.bsky.socialJan 10
en.wikipedia.org/wiki/Prisone... The #PrisonersDilemma is a #GameTheory thought experiment involving two #RationalAgents, each of whom can either cooperate for #MutualBenefit or betray their partner ("defect") for individual gain.

Prisoner's dilemma - Wikipedia
Prisoner's dilemma - Wikipedia

Show threadMorgan AldridgeNov 28

@ducky I think this is important to highlight, but still is too dismissive:

"Economists and politicians look at this anger and call it racism, or lack of empathy. They are missing the mechanism.

Altruism is a function of surplus. It is easy to be charitable when you have excess capacity. It is impossible to be charitable when you are fighting for the last bruised banana."

The economists and the racists _are_ missing the economic mechanism, but _especially_ empathy. It's the #PrisonersDilemma.

Nadiah KristensenOct 16, 2025

Quite the opening sentence to the Discussion of this paper:-

"Repeated interactions alone cannot explain the evolution of one-shot cooperation because they cannot explain the evolution of repeated cooperation."

https://www.nature.com/articles/s41586-024-07077-w

#cooperation #evolution #anthropology #reciprocity #groupSelection #PrisonersDilemma #altruism

Super-additive cooperation - Nature

Models show that human cooperation cannot evolve reliably under repeated interactions or under intergroup competitions, but combining the two mechanisms predicts a distinctive strategy, observed experimentally in Papua New Guinea, in which individuals exhibit cooperative reciprocity with ingroup partners and uncooperative reciprocity with outgroup partners.

Nature
kurtshAug 24, 2025

The variables they introduce for 'playing' are really thought provoking... and yes, the video explains the answer.

▶️ This game theory problem will change the way you see the world - Veritasium
https://youtube.com/watch?v=mScpHTIi-kM&si=r2pxhpSLnnkbQ5Dp
#gametheory #prisonersdilemma

This game theory problem will change the way you see the world

YouTube
FaraiweJul 27, 2025
#PrisonersDilemma #TrolleyProblem
Random MagicJun 11, 2025
#magicthegathering #mtg #PrisonersDilemma #SerenaMalyon
JamesJun 1, 2025

Framing negotiations as a life-threatening adversarial stand-off without trust or communication might have some downsides! The Dilemma's Dilemma looks at the problem with the Prisoner's Dilemma as the go-to example for applied game theory. #PrisonersDilemma #GameTheory #Risk #MoralPhilosophy #Trust

https://open.spotify.com/episode/5pQWWnHPpK6zd2U4LS5kEP?si=ojaXlvSoQJCamtco22FfIg

The Dilemma's Dilemma

Non-Zero-Sum James · Episode

Spotify
Salve J. NilsenApr 8, 2025

Just found @dries's 2019 blog post looking at the Prisoner's Dilemma as a way to describe Open Source sustainability,

https://dri.es/balancing-makers-and-takers-to-scale-and-sustain-open-source

Anyone here know of other/more recent resources that dive a little further into this topic?

#SustainOSS #OpenSource #Sustainability #Economics #GameTheory #PrisonersDilemma

Balancing Makers and Takers to scale and sustain Open Source

To scale and sustain Open Source ecosystems in a more efficient and fair manner, Open Source projects need to embrace new governance, coordination and incentive models.

Dries Buytaert
petersuberApr 2, 2025

#DavidAsch is right: "Colleges Face a Prisoner’s Dilemma. If we don’t band together, we’ll all get skewered alone."
https://www.chronicle.com/article/colleges-face-a-prisoners-dilemma
(#paywalled)

"What is surprising is that these #universities, all facing the same challenges, and forewarned of them, are largely facing them alone. The absence of a meaningfully coordinated defense might have been predicted from the “prisoner’s dilemma,” a classic game-theory framework that reveals why rational actors often fail to cooperate against a common enemy — even when doing so would benefit them."

PS: Law firms too. Nonprofits too.

#Academia #PrisonersDilemma #Trump #USPol #USPolitics
@academicchatter

Nadiah KristensenNov 22, 2024

I recently read a paper by Kleshnina and others and used it to teach myself some evolutionary game theory techniques.

This is a little obscure, so I'll thread below about why this topic matters for humans and the environment 🧵

https://nadiah.org/2024/11/20/kleshnina_2023

#GameTheory #PrisonersDilemma #iteratedGame #cooperation #EvolutionOfCooperation #Z3 #pyeda #networkx #sympy #SageMath #sustainability

Check if an iterated Prisoner’s Dilemma strategy is a subgame perfect Nash equilibrium

I recently read a paper by Kleshnina et al. (2023), The effect of environmental information on evolution of cooperation in stochastic games, which provided an opportunity to teach myself about how to analyse iterated games. In particular, the problem they investigated admits 64 possible scenarios with 256 possible strategies each, and I was interested in writing code that could automate the analysis. The solution I eventually landed on (Github repo) used a combination of SymPy, NetworkX, SageMath, the Z3 Theorem Prover, and PyEDA for Boolean minimisation, but I think my approach could be improved.

Nadiah Pardede Kristensen