Ada called them tasks. I always thought a multi-<i>tasking</i> program made more sense intuitively if one knew what a task was. A language designed for easy learning might call them actions, activities, jobs a la 1960&#x27;s... something more intuitive.<p>Interesting, as I tried a quick brainstorm, I thought of a group of kids sitting together playing with the same toys. Actions that only one could do on a toy at the same time. Trying to convey the problems or exclusivity. Mentally came to problem of sharing. Then that people often borrowed toys temporarily then the owner checked up on them.<p>(lightbulb) Rust has a borrow-checker. And ownership. Now I wonder where they came up with that haha.