You can do it easily in any language with functions and flow control. Restarts and coroutines are just if-errs and CPS-natured code in disguise. The difference

You can do it easily in any language with functions and flow control. Restarts and coroutines are just if-errs and CPS-natured code in disguise. The difference is only syntactic, and there are ways to reduce the noise to manageable levels.