🌐EnglishEnglishDeutschEspañolFrançaisNederlandsPolskiPortuguêsSvenskaРусскийالعربيةفارسیไทย한국어中文日本語EntityQ2078326· pop 14· linked from 32 articlesflatness problemAlso known as oldness problem, Dicke paradoxproblem in cosmology, solved by cosmic inflationAvailable in 14 languagesEspañolFrançaisDeutsch日本語РусскийPortuguêsالعربيةEstonianPolskiSerbianConnectionsFriedmann equationsEntityshape of the universeEntityCategoriesCosmic inflationPhysical cosmologyUnsolved problems in physics