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Local Async Executors and Why They Should be the Default
https://maciej.codes/2022-06-09-local-async.html
One thing that this article misses is that multi-threaded executors can very well optimize for latency.
If for some reason a task is a bit slow to run (say parsing a large JSON blob coming from a request), this means that the other request handlers can still run and don't need to add the latency of this large request.