metaphysical space semiosphere https://en.wikipedia.org/wiki/Semiosphere https://www.wikidata.org/wiki/Q1427873 The sphere of semiosis in which sign processes operate in the set of all interconnected Umwelten. The concept was coined by Yuri Lotman in 1984 and is now applied to many fields, including cultural semiotics generally, biosemiotics, zoosemiotics, geosemiotics, etc.