Karl Popper

Austrian-British philosopher of science (1902–1994), best known for advancing falsifiability as the criterion of demarcation between empirical science and non-science, and for the political work The Open Society and Its Enemies (1945). He held a long tenure at the London School of Economics and was knighted in 1965.

Matters to this vault across two otherwise-separate clusters. In analytic tradecraft, his falsification principle is the stated grounding of Richards Heuer's Analysis of Competing Hypotheses — the vault's first encounter with him (claim-heuer-grounds-ach-in-cognitive-psychology-decision-analysis-scientific-method). In political-economy history he attended the 1947 founding meeting of Hayek's Mont Pelerin Society, having objected beforehand that its guest list was too ideologically uniform to be useful (claim-popper-attended-mont-pelerin-1947-after-objecting-to-hayeks-exclusionary-format). The vault checked whether Popper — a second Central-European philosopher of science in that 1947 room alongside Michael Polanyi — bridges the Polanyi clusters, and found he does not: same meeting, separate threads. Note too that Polanyi's Logic of Liberty preface explicitly contrasts his own theory of liberty against Popper's coinage ("A free society is not an Open Society...").

References

• claim-heuer-grounds-ach-in-cognitive-psychology-decision-analysis-scientific-method
• claim-no-documented-comparison-of-ach-to-backward-chaining
• claim-popper-attended-mont-pelerin-1947-after-objecting-to-hayeks-exclusionary-format
• observation-michael-polanyi-person-bridges-three-vault-clusters-invisible-to-vault-bridge