As Barry Barnes points out, however, anomalies do not speak for themselves. "What one scientist sees as an anomaly," necessitating a revolutionary new paradigm, "another sees as a puzzle" to be solved without radical conceptual change (Barnes 1982, p. 100). WhatJensen envisaged was indeed no more than a "mini-revolution": one likely to involve "more precise and more general theories of market efficiency and equilibrium models of the determination of asset prices under uncertainty," but not "abandonment of the `efficiency' concept" (Jensen 1978, pp. 96 and 100).

Donald MacKenzie, An Engine, Not a Camera, loc. 427