Multiple threads?

[KF6GPE]

I have not used the HP Prime specifically, and my last serious RPL was several years ago --- I've pretty much returned to FOCAL for the little programming I do. But it occurs to me that you might be able to simulate threads with some sort of continuation passing or callbacks. It's similar to how we simulated threads on hardware like the Newton MessagePad and Palm Pilot back in the day, and the callback paradigm is still used today in things like Node.js,

I may be totally off base, though. I keep meaning to play with the Prime emulator to see what I'm missing.