Full Idea
Lewis articulated and made fashionable the cost-benefit reflective equilibrium methodology, but I have my reservations as it does not offer much guidance.
Gist of Idea
I don't think Lewis's cost-benefit reflective equilibrium approach offers enough guidance
Source
Robert C. Stalnaker (Mere Possibilities [2012], 1.1)
Book Reference
Stalnaker,Robert C.: 'Mere Possibilities' [Princeton 2012], p.5
A Reaction
Stalnaker suggests that this approach has 'run amok' in Lewis's case, giving reality to possible worlds. He spends much effort on showing the 'benefits' of a profoundly implausible view. The same can be said of 4D Perdurantism.