Critical Mass
Monthly bike gathering
Critical mass is the minimum amount of fissile material needed to sustain a nuclear chain reaction.
The term extends to any threshold quantity required for something to happen or become self-sustaining: The protest movement finally reached critical mass.
A project, idea, or social movement achieves critical mass when it has enough momentum to continue on its own.
- collective behaviorUnified group conduct patterns
- chain reactionSelf-sustaining causal sequence
- fissionNuclear breakup releasing energy
- thresholdPoint of beginning
- tipping pointThreshold triggering major change
point of no return · market penetration · network effect · social contagion · herd behavior · activism · crowd psychology · feedback loop · viral spread · going viral · diffusion · saturation point · economies of scale · isotope · neutron · uranium enrichment · customer base · decay rate
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- American CyclingLance Armstrong
Critical MassTour de France
Premier European cycling stage competition
road race · time trial · competitive cycling · NASCAR · Formula One
Critical Masscar culture
Societal focus on driving
car · automobile · SUV · Hummer · truck
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