I'm guessing the isolation just means that Nim can guarantee that you don't
have any way to use the data after you've sent it. You've essentially "given"
that data to the receiving thread and its GC, if you used it afterwards then it
wouldn't be able to reason about when to destroy it. Not entir
With the [current channels
implementation](https://nim-lang.org/docs/channels_builtin.html), you can
implement a basic request-response system between threads by sending an object
over a channel that includes (as one of its fields) a channel for sending the
response. For example...
