:-) I don't think pg needs to prove that it's possible to explicitly carry state from request to request using Arc. You can do that in any language. Continua

:-) I don't think pg needs to prove that it's possible to explicitly carry state from request to request using Arc. You can do that in any language. Continuation passing is a cool hack, though I wouldn't use it myself on a production web site that needed to scale. And I do use Scheme.