What happens when a `Channel` is registered with a `Selector`?
The `Channel` gets connected to a thread pool for managing multiple simultaneous I/O operations.
Thatâ€™s incorrect. When a `Channel` is registered with a `Selector`, the `Selector` monitors the channel for readiness, not thread pool management.
Can you describe how multiple channels are handled by a single thread when using a `Selector`?