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You’re conflating concurrency and parallelism. Unless you’re explicitly forking the process, the async all happens in one process.

Async is incredibly easy to manage in node, even the simplest linter handles telling you you’re forgetting to await if you are.

GP does have a good point though, single-threaded concurrency is still concurrency.

> you look at your process table and there's 40 node.js processes trying to compress every log file in the system all at once

This is what GP said, which is incorrect.