There is a dark side, however, to ""being-with"": referring to the ""They"", as in ""they say it was carried out by terrorists."" Heidegger notes that there is a tendency with assertions in general to simply pass it along without any context, as is the case with news or gossip. Essentially, the idea of the ""They"" (Das Man) explores the existential notions of what is authentic or inauthentic.