Agility. The internet gives us the affordance of being agile, flexible, nimble, quick to react.
But it’s ephemeral. Redundancy is not built into the system itself but it is a feature we add on top and is just as easily swept away.
As evidence: Autosave is still a feature rarely implemented properly.
Google Docs probably does it correctly but the code infrastructure behind every keystroke is phenomenal. Yet even there, limited to their own servers, just as easily removed.