"This process allows [many] continuations captured by your servlet to be serialized. This means they may be stored on the client’s browser or the server’s disk."
Oh, I was particularly responding to "It also turns out that there's at least one company trying to scale continuation-based servers," which you said afterward. Guess you chose the example you chose, no worries. ^_^
Ah, good point! I didn't think of it then (I think I even had the racket link in the textarea in a different context before I ended up dropping it to the floor.)