theorypedia
Economics & Decision-MakingPlausible92

Nash Equilibrium

Nash Equilibrium is the principle that a stable outcome exists where each player's strategy is optimal given all other players' choices.

Spain cave discovery upends theory that ancient cannibals targeted children alone - Yahoo

A Spanish cave find has shattered the idea that ancient cannibals preyed only on children — adults were on the menu too.

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Economics & Decision-MakingPlausible92

Opportunity Cost

Opportunity Cost is the principle that every choice requires sacrificing the next-best alternative, making the true cost of any decision what you give up, not just what you pay.

Philosophy & EthicsPlausible92

Ship of Theseus

Ship of Theseus is the thought experiment asking whether an object retains its identity after all its material parts are gradually replaced.

Lindsay Clancy's father-in-law testifies in murder trial as jury sees autopsy photos - YouTube

Lindsay Clancy's father-in-law took the stand as jurors viewed autopsy photos — what does a family member's testimony reveal about loyalty, truth, and the defense's postpartum psychosis claim?

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True Crime
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Science & SystemsPlausible92

The Double-Slit Experiment

The double-slit experiment is the principle that particles exhibit wave-particle duality, behaving as waves when unobserved but as particles when measured.

Economics & Decision-MakingPlausible92

The Prisoner's Dilemma

The Prisoner's Dilemma is the principle that rational self-interest can lead to collectively worse outcomes when parties cannot communicate or enforce cooperation.

The wrong suspects, the tip-off and the killers who got away - The Age

A theory emerged that Maria was stabbed to silence her before she could expose her killer as a paedophile — raising whether the wrong men paid for the crime.

theage.com.auTrue CrimePsychologySociology
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Science & SystemsPlausible88

Feedback Loops

Feedback loops are the principle that system outputs circle back to influence their inputs, creating self-reinforcing or self-correcting patterns.

Psychology & BehaviorPlausible88

Loss Aversion

Loss Aversion is the principle that losses feel roughly twice as painful as equivalent gains feel pleasurable, driving asymmetrical decision-making across contexts.

Helldivers 2 Shuts Down Fan Theories With Cryptic War Tease - HappyGamer

Helldivers 2 just shut down its own fans with a cryptic war tease — raising the question of whether developer-planted mystery beats crowd-sourced theory every time.

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Technology & InnovationPlausible88

Network Effects

Network Effects is the principle that a service or platform becomes exponentially more valuable as more people use it, creating self-reinforcing growth and competitive advantages.

Psychology & BehaviorPlausible85

Cognitive Dissonance

Cognitive Dissonance is the principle that psychological discomfort from conflicting beliefs drives people to rationalize, dismiss, or alter their beliefs to restore mental consistency.

Lindsay Clancy trial day 9 focuses on psychiatric care in weeks before murders - YouTube

Lindsay Clancy's trial hinges on whether her psychiatric care in the weeks before the killings failed her — or whether it changes her culpability at all.

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Psychology
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Economics & Decision-MakingPlausible85

Sunk Cost Fallacy

Sunk Cost Fallacy is the tendency to continue investing in failing endeavors because of past expenditures rather than future costs and benefits.

Psychology & BehaviorPlausible85

The Bystander Effect

The bystander effect is the principle that individuals are less likely to help someone in need when other witnesses are present, due to diffusion of responsibility and pluralistic ignorance.

Economics & Decision-MakingPlausible85

The Cobra Effect

The Cobra Effect is the principle that poorly designed incentives can inadvertently increase the very problem they're meant to solve.

Fauci is an easy scapegoat for pandemic revisionists - Salon.com

Rand Paul's claim that Fauci covered up a Chinese lab leak puts one man at the center of a global pandemic — but is that a credible accusation or a convenient story?

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Economics & Decision-MakingPlausible82

Goodhart's Law

Goodhart's Law is the principle that when a measure becomes a target for optimization, it ceases to be a reliable measure of what it was intended to assess.

Culture & SocietyPlausible82

Moral Panic

Moral panic is the principle that societies collectively amplify minor threats into perceived existential crises, driven by media coverage and reflecting deeper anxieties rather than proportionate risk assessment.

NL MVP Debate: PCA vs. Shohei Ohtani, Skubal Trade Conspiracies & The Good, Bad, and Uggla

Paul Skenes vs. Ohtani for NL MVP and whispers that Skubal was traded away on purpose — baseball's offseason is running hot on rival theories.

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Science & SystemsPlausible82

Swiss Cheese Model

Swiss Cheese Model is the principle that disasters occur when multiple independent safety barriers fail simultaneously and their weaknesses align.

Science & SystemsPlausible82

The Butterfly Effect

The Butterfly Effect is the principle that minute changes in initial conditions can cascade into vastly different outcomes in chaotic systems.

Mitch McConnell Discharged from Rehab Center, Returns Home for Physical Therapy

Two photos of McConnell with wife Elaine Chao sparked conspiracy theories the moment his office released them — what makes an image fuel doubt instead of silence it?

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Psychology & BehaviorPlausible82

The Halo Effect

The Halo Effect is the tendency to let a single positive impression of someone or something color our judgment of their other unrelated traits.

Health & MedicinePlausible82

The Nocebo Effect

The Nocebo Effect is the principle that negative expectations can produce real adverse physiological symptoms through neurobiological mechanisms independent of any active treatment.

Deadly plane crash that killed 230 still sparking conspiracy theories 30 years on - Daily Star

A Paris-bound jet killed 230 people just 12 minutes after takeoff — and three decades later, the conspiracy theories it sparked still won't die.

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Business & StrategyPlausible82

The Pareto Principle

The Pareto Principle is the observation that roughly 80% of effects typically come from 20% of causes across diverse domains.

Health & MedicinePlausible82

The Placebo Effect

The placebo effect is the principle that belief in a treatment activates real neurobiological healing mechanisms, independent of the treatment's pharmacological properties.

Scientists debunk long-held myth about the most famous animal extinction

The most famous extinction in history may not have unfolded the way Darwin thought — and scientists now say the long-held explanation is wrong.

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Philosophy & EthicsPlausible82

The Trolley Problem

The Trolley Problem is the thought experiment showing that human moral reasoning relies on emotional intuitions that diverge from abstract utilitarian logic.

Health & MedicinePlausible78

Allostatic Load

Allostatic load is the principle that chronic activation of stress-response systems causes cumulative biological damage across multiple physiological systems.

Meet the man behind the Charlie Kirk “exploding mic” conspiracy theory - Modern Ghana

Someone built a conspiracy theory around Charlie Kirk's microphone — and now we know who, and why the story spread so fast.

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Politics
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Economics & Decision-MakingPlausible78

Jevons Paradox

Jevons Paradox is the principle that efficiency improvements in resource use typically increase overall consumption by lowering effective costs and expanding demand.

Philosophy & EthicsPlausible78

Occam's Razor

Occam's Razor is the principle that simpler explanations requiring fewer assumptions are generally preferable to more complex ones.

Sadie Sink's Latest X-Men Movie Update Could Confirm an MCU Fan Theory

Sadie Sink's offhand production timeline update is fueling fan theories about when the MCU's X-Men film will actually land.

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Culture & SocietyPlausible78

The Streisand Effect

The Streisand Effect is the principle that attempts to censor or suppress information paradoxically amplify its spread and public interest.

Economics & Decision-MakingPlausible72

Black Swan Theory

Black Swan Theory is the principle that rare, unpredictable outlier events often have outsized historical impact despite being impossible to foresee.

Is an Infection Really Behind Alzheimer's? Shocking New Theory Alarms Scientists

A gum-disease bacterium found in Alzheimer's brains raises a charged question: could decades of plaque buildup in your mouth be quietly wiring a neurological catastrophe?

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Psychology & BehaviorPlausible72

Dunning-Kruger Effect

Dunning-Kruger Effect is the principle that incompetence prevents people from recognizing their own lack of skill, leading to unwarranted confidence.

Business & StrategyPlausible72

First-Mover Advantage

First-mover advantage is the principle that entering a market before competitors can create lasting competitive benefits through customer lock-in, resource control, and norm-setting.

Is Pluribus About AI? Rhea Seehorn Responds - Esquire

Rhea Seehorn is being asked directly whether her new show Pluribus is secretly about AI — and her answer is fueling fan theories.

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Philosophy & EthicsPlausible72

Hanlon's Razor

Hanlon's Razor is the principle that simpler explanations rooted in error or incompetence should be favored over assumptions of malice or conspiracy.

Health & MedicinePlausible72

Hormesis

Hormesis is the principle that low doses of potentially harmful stressors trigger adaptive responses that increase resilience and protective capacity.

Marvel's New Special Presentation Rumor Hints at an Unexpected Genre Shift, Filming Window

Marvel's rumored 2027 Special Presentations are already sparking fan theories — does early genre-shift buzz build hype or set expectations too high to meet?

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Technology & InnovationPlausible72

Metcalfe's Law

Metcalfe's Law is the principle that a network's value grows exponentially with the square of its users, not linearly.

Technology & InnovationPlausible72

Moore's Law

Moore's Law is the principle that transistor density on computer chips doubles approximately every two years, enabling exponential growth in computing power.

Psychology & BehaviorPlausible72

Moral Licensing

Moral licensing is the tendency to engage in unethical behavior after performing virtuous acts, as if good deeds grant psychological permission for subsequent moral lapses.

Fallout Season 3 Set Photos May Reveal the Order of the Quill - TheGWW.com

A symbol spotted in Fallout Season 3 set photos has fans convinced it reveals a secret Brotherhood of Steel subdivision — but is the evidence solid?

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Business & StrategyPlausible72

Parkinson's Law

Parkinson's Law is the principle that work expands to fill the time available for its completion, explaining why tasks consume whatever deadline you assign.

Technology & InnovationPlausible72

The Gartner Hype Cycle

The Gartner Hype Cycle is the principle that emerging technologies follow a predictable pattern of initial excitement, disillusionment, and eventual productive integration.

Who Is The Trawler in 'The Shards'? Every Killer Theory Fans Are Chasing Right Now

Fans think Bret Easton Ellis wrote himself into The Shards as the killer — and the novel's blurred autobiography makes that genuinely hard to dismiss.

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Business & StrategyPlausible72

The Innovator's Dilemma

The Innovator's Dilemma is the principle that successful companies pursuing rational strategies to serve existing customers become vulnerable to disruptive innovations from simpler, cheaper competitors.

Culture & SocietyPlausible72

The Overton Window

The Overton Window is the idea that acceptable political discourse operates within a shifting range of opinion, moving ideas from unthinkable fringe to mainstream policy over time.

Inde Navarrette Reveals the One Obsession Question Fans Won't Drop - Yahoo

Fans of Obsession keep hammering Inde Navarrette with one question about Nikki — and she's living for every theory they throw at her.

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Business & StrategyPlausible72

The Peter Principle

The Peter Principle is the idea that people rise through hierarchies until promoted to a level where they lack the skills to perform competently.

Culture & SocietyPlausible62

Six Degrees of Separation

Six Degrees of Separation is the principle that any two people on Earth are connected through at most six social intermediaries.

Theory: This Is Loki, Not Cap : r/marvelstudios - Reddit

A Reddit theory with 1.7K votes argues the mysterious figure isn't Cap at all — but Loki in disguise, and Thor's multiverse knowledge is the key clue.

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Entertainment
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Psychology & BehaviorContested52

Broken Windows Theory

Broken Windows Theory is the principle that unrepaired signs of disorder signal neglect and enable escalating crime if left unchecked.

Psychology & BehaviorContested45

Maslow's Hierarchy of Needs

Maslow's Hierarchy of Needs is the principle that human motivation progresses through levels from basic physiological survival to self-actualization.

Part of: The 2026 US Midterm Elections

US employers unexpectedly shed jobs, clashing with Trump's economic message - Politico

US employers unexpectedly shed jobs just as Trump touts economic strength — does bad news arrive before voters update their beliefs, or after?

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Economics
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Physics

The Explanatory Reach of Quantum Field Theory and String Theory

What physics' deepest frameworks — quantum field theory and string theory — actually explain about how the world is built, and where their reach runs out.