> I wonder if they also tried adding more standard streams Common Lisp standardises a whole bunch of different streams (their names begin & end with asterisks,

> I wonder if they also tried adding more standard streams Common Lisp standardises a whole bunch of different streams (their names begin & end with asterisks, but I don't think that there's a way for HN to escape those): - standard-input: probably what you think it is - standard-output: ditto - error-output: what a Unix user might call standard-error … - query-io: a bidirectional stream, used for questions & answers asked of the user interactively - debug-io: another bidirectional stream, used for debugging - trace-output: used for print function traces & timing information - terminal-io: a bidirectional stream representing the terminal itself Yeah, like a lot of Common Lisp it's overengineered, but there are some intriguing possibilities in there, too.