On Wed, 12 Aug 2026 at 16:52, Udo Steinbach via Std-Proposals
<std-proposals_at_[hidden]> wrote:
>
> Again: Benefit?
> I don't see an answer on the most important question.

Three relatively-concrete use cases come to mind:
1) poisoning a variable after it's been moved from
2) poisoning a task graph after it's been launched (which in Senders
is also a move, but elsewhere might not be)
3) poisoning a task completion after its result has been received