Given that the person you are replying to is the author, I'm guessing he probably does not "partly still believe it's true." I'm going to bang on the "give peop

Given that the person you are replying to is the author, I'm guessing he probably does not "partly still believe it's true." I'm going to bang on the "give people generous readings" drum here, too: "Jamming is really bad for typing speed" is not "pretty cagey," it's "a humorous comment." (Also, you know, technically correct.)