"Do Intelligent Arguments Make A Difference?" Ctd

Sprung pipes up:

Momentous events may ultimately settle arguments, forinstance by discrediting Hooverian retrenchment in the face ofDepression. Successful politicians articulate what's not working, andwhy -- though sometimes, for sure, cleverly packaged nostrums win theday, short-term. "The gravitational pull of mounting social change" isshaped gradually by event and argument - as in the spectacle of MartinLuther King's peaceful demonstrators being beaten and having debrisheaped on them -...