On Tue, Mar 25, 2003 at 07:41:25AM +0900, Hal E. Fulton wrote: > This makes me think that continuations would be good where real > decision trees are used, e.g., in chess programs and such. It may make a chess program easier to understand, but it will probably slow it down. In Ruby, the cost of constructing a continuation that I may or may not use is too high for almost anything I want to use continuations for. Paul