An Ode to Effective Lagrangians

Abstract

A brief introduction is given to the methods and spirit of effective lagrangians. The emphasis is on a summary of the overall picture, using a simple model as the vehicle to motivate and illustrate the main points. Powercounting is illustrated by estimating the size of the quantum corrections to the predictions of classical gravity.

Comments: 18 pages, LaTeX, no figures. Invited talk presented to RADCOR 98, Barcelona, September 1998