Network Effects

October 2026

• Oct 26, 2026ConceptsMetcalfe's Law: Why Networks Get More Valuable as They GrowBriscoe, Odlyzko and Tilly argued in IEEE Spectrum in 2006 that treating every possible connection as equally valuable vastly overcounts, and proposed that value grows in proportion to n log n instead, a curve still faster than linear but far gentler than the square. Metcalfe answered in 2013 with a decade of Facebook data he said fit the quadratic form. The article traces the law from an Ethernet sales slide to the exponent that remains genuinely unsettled.14 MIN810

January 2026

• Jan 20, 2026ConceptsNetwork Effects ExplainedWhy value grows faster than membership, and what that does to competition. The page distinguishes direct, indirect, data, social and geographic network effects, explains the cold start problem and minimum viable network density, and covers the negative side: congestion, content pollution, social dilution. Metcalfe's n squared rule is treated as a simplification, with later analysts arguing real network value grows closer to n log n.20 MIN49.0k

May 2025

• May 29, 2025CultureThe Lifecycle of Media Platforms: A 4-Phase OverviewMySpace had 100 million users in 2006 and felt too big to fail. By 2011 it had lost 99% of its value. Vine peaked at 200 million users, invented short-form video, and was shut down in 2017 without surviving to see TikTok build a far larger business on the same format. Network effects create real power but never permanence. The four phases every platform moves through, and the triggers that end dominance.31 MIN57.8k

October 2022

• Oct 24, 2022CultureThe Cold Start Problem in New ProductsWhy networked products struggle at launch and how the circular dependency gets broken. A ride-sharing app without drivers offers passengers nothing, and without passengers drivers have no reason to join. When Airbnb launched during the 2008 Democratic National Convention in Denver it had almost no listings, so Chesky, Gebbia and Blecharczyk photographed apartments themselves, styled the listings and personally recruited hosts, city by city.12 MIN5.8k

August 2022

• Aug 16, 2022TechnologyWhat Is Platform Economics: How Two-Sided Markets WorkRochet and Tirole showed the pricing structure matters more than the price level: the side that generates more cross-side value, or is more price-sensitive, gets subsidized. The Institute for Local Self-Reliance estimated in 2023 that Amazon now collects about 50% of third-party seller revenue through referral, fulfillment and advertising fees, up from roughly 27% in 2014. The article also covers the chicken-and-egg problem and multi-homing as the main limit on monopoly.17 MIN12.2k