Skip to main content

Content Types

Follow Content Types in the Factlen app and get an alert when there is news. Get the app

More in Content Types

ExplainerLie Detection Science

Polygraph Tests Measure Physiological Stress Rather Than Deception

Scientific Community 50%Law Enforcement & Intelligence 30%Polygraph Industry 20%

6 sources · 40d ago

ExplainerCryptographic Standards

Evaluating Cryptographic Efficiency: Why a 256-Bit Symmetric Key Matches a 15360-Bit RSA Key

Standards Bodies 40%Infrastructure Engineers 35%Security Researchers 25%

6 sources · 40d ago

ExplainerRisk Management

Calculating the Optimal Allocation: How the Kelly Criterion Balances Edge Against Volatility Drag

Risk-Adjusted Practitioners 45%Quantitative Purists 40%Market Skeptics 15%

9 sources · 40d ago

ExplainerDigital Provenance

ClaimReview Markup Turns Human Fact-Checks Into Structured Data for Search and AI

Publishers and Fact-Checkers 40%AI Developers and Researchers 35%Search Platforms 25%

4 sources · 40d ago

ExplainerData Clean Rooms

Replacing the Cookie: How Data Clean Rooms Actually Match Audiences Without Exposing Personal Data

Enterprise Advertisers 35%Premium Publishers 35%Privacy Standards Bodies 30%

6 sources · 40d ago

ExplainerCausal Inference

The Fundamental Problem of Causal Inference: Why the Counterfactual is Always Missing

Causal AI Developers 35%Structural Causal Modelers 35%Classical Statisticians 30%

5 sources · 41d ago

ExplainerEpidemiological Models

Calculating the Critical Threshold: How the Basic Reproduction Number Determines Herd Immunity

Mathematical Epidemiologists 40%Public Health Implementers 40%Biomedical Researchers 20%

6 sources · 41d ago

Research BriefPublishing Platforms

Evaluating Ghost Against Substack: The Revenue Crossover Point for Independent Publishers

Turnkey Platform Advocates 40%Open-Source Proponents 40%Independent News Operators 20%

6 sources · 41d ago

ExplainerData Preservation

How Former NOAA Scientists Resurrected the Federal Climate Dashboard

Independent Science Communicators 60%Federal Efficiency Advocates 20%Educational Organizations 20%

3 sources · 41d ago

ExplainerReadability Metrics

Flesch-Kincaid and Gunning Fog Turn Syllables and Sentence Length Into Grade Levels

Plain English Advocates 40%Technical Communicators 35%Literacy Researchers 25%

2 sources · 41d ago

ExplainerPayment Infrastructure

Credit Card Authorization: The Four-Party Model and Six-Step Routing Sequence

Issuing Banks 40%Merchants 35%Payment Networks 25%

5 sources · 41d ago

ExplainerVisual Forensics

How Visual Forensics Desks Actually Authenticate User-Generated Video During Breaking News

Visual Forensics Investigators 40%OSINT Automation Developers 35%Media Literacy Advocates 25%

6 sources · 41d ago

ExplainerSocial Media Forensics

How AI Agents Are Replacing CrowdTangle to Track Cross-Platform Misinformation

Independent Investigators 60%Platform Operators 40%

3 sources · 42d ago

ExplainerCognitive Psychology

Petty and Cacioppo's ELM Shows How Motivation and Ability Dictate Persuasion Routes

Psychological Researchers 40%Digital Marketers 30%Information Security Analysts 30%

6 sources · 42d ago

ExplainerPsychometrics

How Item Response Theory (IRT) Separates Test-Taker Ability from Question Difficulty

Psychometricians & Test Publishers 50%Classical Measurement Advocates 30%Test-Takers & Educators 20%

2 sources · 42d ago

ExplainerAsset Pricing

How Beta Scales the Market Risk Premium to Calculate Required Return

CAPM Traditionalists 40%Multi-Factor Proponents 40%Corporate Valuation Analysts 20%

6 sources · 42d ago

ExplainerDNS Architecture

How Recursive and Iterative DNS Queries Trade Network Efficiency for Security

Network Efficiency Advocates 50%Infrastructure Security Analysts 30%Protocol Purists 20%

7 sources · 42d ago

ExplainerEconomic Levers

Why Federal Reserve Rate Moves and Congressional Spending Affect Growth Differently

Macroeconomic Stabilizers 35%Structural Interventionists 35%Debt & Coordination Analysts 30%

6 sources · 42d ago

Media Myths

The Backfire Effect Myth: Why Factual Corrections Actually Work

Cognitive Psychologists 40%Science Communicators 35%Political Strategists 25%

6 sources · 42d ago

ExplainerAlgorithm Regulation

Australia Proposes Mandatory Algorithm Opt-Out for Social Media Feeds

The Australian Government 40%Digital Rights Advocates 30%Social Media Platforms 30%

5 sources · 43d ago

ExplainerComplex Systems

The Four Defining Properties of a Complex Adaptive System and Why They Resist Long-Term Prediction

Complexity Researchers 45%Adaptive Management Practitioners 30%Predictive Analytics Vendors 25%

6 sources · 43d ago

Digital Provenance

Apple Bypasses Open Standards with Hardware-Level Photo Authentication in iOS 27

Open Standard Advocates 40%Proprietary Ecosystem Defenders 30%Media Literacy Experts 30%

4 sources · 43d ago

ExplainerCryptography

The Modular Arithmetic That Establishes a Shared Secret Over an Insecure Channel

Cryptographic Purists 35%Security Researchers 35%Enterprise Implementers 30%

7 sources · 43d ago

Public BroadcastingStructural Redesign

Poynter and Public Media Company Launch Initiative to Rebuild Defunded Public Broadcasting System

Initiative Organizers 50%Nonprofit Innovators 30%Legacy Broadcasters 20%

5 sources · 43d ago

ExplainerPlatform Governance

Meta's Community Notes Expansion to Latin America Tests the Limits of Crowdsourced Fact-Checking

Professional Verification Defenders 60%Algorithmic Consensus Advocates 40%

3 sources · 43d ago

ExplainerDisplay Technology

Evaluating Display Contrast Standards: How the ANSI Checkerboard Separates True Performance from Marketing

Standards Bodies & Independent Testers 50%Consumer Tech Reviewers 30%Display Manufacturers 20%

7 sources · 43d ago

ExplainerSensor Fusion

Kalman Filters Fuse Noisy Sensor Data by Predicting and Correcting System States

Classical Control Theorists 40%Autonomous Systems Engineers 40%Deep Learning Advocates 20%

4 sources · 43d ago

Media Economics

Evaluating the Nonprofit News Shift: The Revenue Models Replacing Commercial Journalism

Philanthropic Optimists 40%Editorial Independence Skeptics 30%Commercial Traditionalists 30%

6 sources · 44d ago

ExplainerIdentity Architecture

OAuth 2.0 Authorization Code Flow Isolates Passwords from Third-Party Applications

Commercial Identity Providers 40%Protocol Purists 30%Enterprise Security Architects 30%

6 sources · 44d ago

Yemen ConflictMilitary Escalation

Houthi Offensive in Western Yemen Leaves Over 500 Dead Amid Renewed Saudi Airstrikes

Coalition & Government Forces 35%International Mediators 35%Houthi Forces 30%

5 sources · 44d ago

ExplainerAttention Mechanism

Scaled Dot-Product Attention: Using Queries, Keys, and Values to Weight Input Tokens

Mathematical Purists 50%Applied AI Engineers 30%Educational Communicators 20%

6 sources · 44d ago

ExplainerViral Mechanics

Evaluating the Arousal Hypothesis: Why Anger and Awe Drive Viral Sharing More Than Happiness or Sadness

Behavioral Economists 40%Computational Linguists 35%Commercial Strategists 25%

7 sources · 44d ago

Deep DiveSearch Algorithms

Evaluating BM25 Against TF-IDF: The Saturation Function That Solved Keyword Stuffing in Search

Information Retrieval Researchers 40%Enterprise Search Engineers 40%Algorithm Historians 20%

7 sources · 44d ago

ExplainerRating Algorithms

Sorting by Confidence: How the Wilson Score Interval Fixes the Five-Star Rating Problem

Statistical Purists 40%Platform Engineers 40%Community Moderators 20%

5 sources · 45d ago

Research BriefEnterprise AI

Evaluating RAG Pipelines Against Million-Token Context Windows for Enterprise Search

RAG Architects 60%Long-Context Proponents 40%

4 sources · 45d ago

ExplainerNetwork Theory

PageRank Uses Eigenvector Centrality and the Random Surfer Model to Rank Web Pages

Network Theorists 40%SEO Practitioners 30%Algorithm Engineers 30%

6 sources · 45d ago

ExplainerEconomic Metrics

Measuring the Tails: How the Palma Ratio's Top 10% Focus Compares to the Gini Coefficient and Theil Index

Development Economists 40%Policy Advocates 35%Statistical Purists 25%

7 sources · 45d ago

ExplainerIntellectual Property

Function, Source, and Expression: How Intellectual Property Law Separates Patents, Trademarks, and Copyrights

Intellectual Property Attorneys 60%State Regulators 40%

4 sources · 45d ago

ExplainerEpidemiology

Austin Bradford Hill's Nine Criteria for Determining Causation in Observational Data

Traditional Public Health 40%Molecular Integrationists 35%Legal & Regulatory 25%

6 sources · 45d ago

ExplainerProbability Theory

Brier Score Decomposition Splits Forecast Error into Reliability and Resolution

Statistical Purists 40%Clinical Risk Modelers 35%Machine Learning Pragmatists 25%

8 sources · 45d ago

ExplainerAI Provenance

How Cryptographic AI Watermarks Actually Embed Signals in Text and Images

Cryptographic Provenance Advocates 40%Open-Source Security Researchers 35%Transparency Advocates 25%

7 sources · 45d ago

ExplainerAI Alignment

How Direct Preference Optimization (DPO) Actually Aligns Large Language Models

Open-Source Advocates 40%Enterprise AI Deployers 35%Frontier AI Researchers 25%

4 sources · 46d ago

ExplainerStatistical Methods

Scaling Statistical Power: The Benjamini-Hochberg Solution to the Multiple Comparisons Problem

Discovery Optimization (FDR) 60%Strict Error Control (FWER) 20%Bayesian Inference 20%

5 sources · 46d ago

ExplainerAlgorithmic Curation

How Empirical Data Contradicts the 'Filter Bubble' Hypothesis

Empirical Researchers 50%Systems Analysts 30%Algorithmic Determinists 20%

5 sources · 46d ago

ExplainerHardware Standards

The IEC 60529 Standard: How the Two Digits of an IP Rating Actually Define Water and Dust Resistance

Industrial Engineers 40%Enclosure Manufacturers 35%Consumer Hardware Analysts 25%

3 sources · 46d ago

ExplainerAI Inference

How Test-Time Compute and Tree Search Actually Enable LLM Reasoning

Inference Optimization Researchers 40%Neuro-Symbolic Integration Advocates 30%Compute Efficiency Analysts 30%

5 sources · 46d ago

Per page