🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtРусскийالعربيةहिन्दी한국어中文日本語EntityQ22192· pop 25· linked from 312 articlesgrey gooAlso known as gray goohypothetical end-of-the-world scenarioAvailable in 25 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةAsturianBahasa IndonesiaConnectionshazardEntitymolecular machineEntityCategories1980s neologismsArtificial lifeDoomsday scenariosMulti-robot systemsNanotechnologySelf-replicating machinesThought experiments in ethics