Yes, it is possible, and actually works - unless one of your threads blocks the event loop and prevents all others from running. This way it takes a single lock

Yes, it is possible, and actually works - unless one of your threads blocks the event loop and prevents all others from running. This way it takes a single locking thread to halt the whole system, whereas with standard threads a single stalling thread does not cause all others to starve. This is a risk in Node that multiple other runtimes of other languages do not have.