Most likely a SaaS app that auto-saves, but didn’t save properly. Then closing the laptop caused a network disconnect, and the in-browser app did not recover gracefully while awaiting reconnect on wake-up and lost all unsaved data.

This would have been unbelievable to me before this year. Then I used PowerPoint via the browser and found this level of data loss is a regular occurrence.

I have these problems with Zed on my local fs. Science is hard.