Communicating between vibe.d's worker tasks

[Nordlöw]

On Thursday, 23 November 2017 at 10:15:26 UTC, Nordlöw wrote:
> I'm looking at
>
> http://vibed.org/api/vibe.core.concurrency/makeIsolated

Further, what does "weakly isolated" mean here

http://vibed.org/api/vibe.core.core/runWorkerTask

?