english: And although they vary enormously in scale, maturity and purpose, when we dived into them, we realized that they could actually be organized into three clear systems.
non_english: A hoci sa výrazne líšia v miere vývoja a vo svojom účeli, keď sme sa do nich ponorili, uvedomili sme si, že ich vlastne možno rozdeliť do troch jasných systémov.