If you take the word "thread" to mean only "OS thread", then of course you are right, in the most boring way.

If you agree that Project Loom virtual threads are threads, consider this. When pluggable executor is available, you start a few of virtual threads, confining them in the UI thread. Semantically, how are they different from calling async functions in JavaScript?

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>> abstraction allowing programmers to write sequences of code that can run and pause.

> No. Callbacks are not a form of threads. Async is not a form of threads.

Simply a "No" adds nothing to the conversation. Do you not see that they are "sequences of code that can run and pause"? Or do you not agree with the wider meaning of the word "thread"?