He adopted a modified form of the proto-feminist and neo-pagan theories of Johann Jakob Bachofen,[2] with which he attempted to return civilization to a 'golden age' of non-hierarchy.

Gross deserves full credit for being the first to set up a simple and consistent hypothesis to account for this [the extraverted] type (Jung, [1921] 1971: par.

Otto Gross, played by Vincent Cassel, is one of the characters in the 2011 film A Dangerous Method, which focused on the relations among Jung, Sabina Spielrein and Freud.

According to Brenda Maddox, Otto Gross "talked all the time — even, if his portrait in D.H. Lawrence's novel Mr Noon is accurate, during sexual intercourse.

"[6] Gross died of pneumonia, possibly related to drug addiction, in Berlin on 13 February 1920, after being found in the street, near-starved and freezing.