#lang scribble/sigplan @onecolumn @require["common.rkt"] @title[#:tag "sec:conclusion"]{Out of Time} My old clock used to tell the time and subdivide diurnity; but now it's lost both hands and chime and only tells eternity. @; type systems change slowly. That's OK @; syntax extensions can change much faster and YOU can control the @; changes. That's YOU joe programmer or YOU jane street capital. Do you. @; just one way of doing this, can imagine other Typed Racekt @; in fact Stephen Chang .....