GoodReads meta-data is 480 pages, rated 4.17 by 107 litizens. Genre: Non-Fiction. Verdict: Only for the cognoscenti. The Wiener Kreis was one of the engines of Twentieth Century science, including philosophy and mathematics. It began as a loose discussion group and evolved into a more tightly knit and organised group with satellites. The Kreis – … Continue reading ‘Exact Thinking in Demented Times: The Vienna Circle and the Epic Quest for the Foundations of Science’ (2017) by Karl Sigmund.