different between umwelt vs semiosphere

English

umwelt (plural umwelts or umwelten)

semio- +? -sphere

semiosphere (plural semiospheres)

(semiotics) The sphere of semiosis in which the sign processes operate in the set of all interconnected Umwelts; The domain of all signs that represent and define a culture.
- 2003 Iu. M. Lotman, Edna Andrews - Conversations With Lotman: Cultural Semiotics in Language, Literature, and Cognition
  Lotman's conceptualization of the semiosphere was inspired by Vernadsky's and Teilhard de Chardin's vision of the biosphere and the noosphere.

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