Is there any chance to use thread pool?

[Blame4]

If we can only use one work-thread, async/await may not be so useful. Using one work-thread for each individual work root might be wasting.Using multiple threads is not an urgent though. WASM is an option.

[samouri]

If we can only use one work-thread, async/await may not be so useful.

Can you explain more here? I don't understand why a single work-thread changes the equation. Things like fetch still happen in parallel.