Svante Arrhenius, cosmical physicist and auroral theorist

Zeropoint Energies, Cosmical Constant, and Supersymmetry

Prismatic Deviation as a Function of Cosmical

The Mind’s Theorist

The highest-order function of the mind is as a theorist. The memory system accumulates information about the outside world. The mind’s theorist must sort through the information to formulate a theory about that world. The basic component of the system for theory building is a process called trolling. When the conscious mind is not being bombarded by external stimuli, or during certain stages of...

On Prediction in Theorist

Thielscher, M., On prediction in Theorist (Research Note), Artificial Intelligence 60 (1993) 283-292. Theorist is a well-known framework and system for nonmonotonic reasoning which provides mechanisms for dealing with both explanations for observations and skeptical prediction. Its current implementation, developed by David Poole and co-workers, uses an algorithm for prediction which holds for ...

David Cass: Economic theorist

In this issue of JET, we celebrate Dave Cass’s remarkable scientific career with two symposia: (1) “Economic Growth” organized by Daron Acemoglu, and (2) “General Equilibrium” organized by Yves Balasko and John Geanakoplos. Dividing the issue into two parts should not obscure the fact that Dave recognized only one economic science, one that includes growth, general equilibrium (GE), and more. D...