Occam’s Razor and Managing Acute Thrombosis in the COVID-19 Era

The COVID-19 pandemic has profoundly influenced the practice of medicine in Australia over the last 24 months. Recently, the development of several vaccines to COVID-19 has been accompanied by reports of an associated rare syndrome of thrombosis and thrombocytopaenia (VITTS). The possibility of this rare disorder confronts all clinicians who deal with acute thrombosis, particularly given the prevalence of patients who have recently been immunised. However, VITTS remains rare, and we believe unnecessary focus on its potential diagnosis may distract from other more common causes of acute thrombosis. We discuss this with reference to a recent case at our institution.

The Blunting of Occam’s Razor: Omnicompetent Reductionism Distorting Conceptions of Giftedness

Theoretical and practical work in gifted education has been dominated by mechanistic precision in measurements designed to select students for gifted programs and guide them through their development. Too much faith in mechanistic precision can become a form of dogmatism that obscures very important, less-measurable dimensions of human ability. This interdisciplinary analysis explores this form of dogmatism while illustrating some ways in which it misaligns gifted education with turbulent, complex 21st-century trends and issues.

Der Flussname Inn, Ockhams Rasiermesser und moderne Indogermanistik

Some European hydronyms (among them also the river-name Inn) have sometimes been explained based on a root PIE “ *en‑/*on‑” (modern spelling: PIE *h₁en(H)-), which has usually been given the meaning ‘flow, river’ vel sim. This root cannot even be found in Pokorny’s Indogermanisches etymologisches Wörterbuch (1959). No real proof for that root has been found in the appellative lexicon of any Indo-European language. Moreover, there aren’t any sure continuations of that root in the onymic lexicons of those languages. All names put forward as arguments can either be explained based on a root PIE *pen-/*pon- ‘swamp, (standing) water’ (because they are Celtic) or based on a root PIE *h₂en- ‘haul (water)’. As long as no proof of an appellative use of a root PIE *h₁en(H)- can be offered, which alone might tell us, what that root actually meant, the application of ‘Occam’s razor’ leaves us no other choice but to explain all regarding names from the other two roots.

Foundations of the Age-Area Hypothesis

A useful tool in understanding the roots of the world geography of culture is the Age-Area-Hypothesis. The Age-Area Hypothesis (AAH) asserts that the point of geographical origin of a group of related cultures is most likely where the culture speaking the most divergent language is located. In spite of its widespread, multidisciplinary application, the hypothesis remains imprecisely stated, and has no theoretical underpinnings. This paper describes a model of the AAH based on an economic theory of mass migrations. The theory leads to a family of measures of cultural divergence, which can be referred to as Dyen divergence measures. One measure is used to develop an Age-Area Theorem, which links linguistic divergence and likelihood of geographical origin. The theory allows for computation of the likelihood different locations are origin points for a group of related cultures, and can be applied recursively to yield probabilities of different historical migratory paths. The theory yields an Occam’s-razor-like result: migratory paths that are the simplest are also the most likely; a key principle of the AAH. The paper concludes with an application to the geographical origins of the peoples speaking Semitic languages.