Found at things magazine: Karl-Hans Janke spent the final 40 years of his life in a psychiatric hospital, suffering from paranoia, schizophrenia, and possibly autism. His doctor noted the main symptom of his illness was “manic inventing”. You have to see the catalogue of a show about his work to believe it - note that most of the German texts appear in English translation a few pages later (unfortunately, the quotes by Wernher von Braun - which make you question his sanity - aren’t translated).