[paulgb]

The use case in that example is for ephemeral notebooks used for demos. It's also good for running notebooks for temporary classroom use.

When backends are spawned, there is a period of time that they remain alive without a connection. By default, it's 5 minutes. So if you accidentally close a tab, but open it back within 5 minutes, the kernel is still there.

[tony_cannistra]

Thanks, I can definitely understand the classroom use-case.

I've seen a lot of bad engineering go into solving that problem, this seems like a better way.