Hey bootsz, when your connection is down, you'll still have a local cache of your messages, contacts and calendar events. Email has retry built in and sending servers typically retry for at least 48-72 hours. The hardware has no moving parts so it should last for a long time, but when there is an inevitable failure, there are encrypted backups that can be downloaded to a replacement device and decrypted using keys only you have access to.

Yeah. Even though I've had my own collocated hardware since Bubble 1.0, I'm looking to move all of that to the cloud. When your own hardware works, it works reliably for years. But when something breaks it's an urgent fire drill, [1] and I'm entirely over those.

[1] Unless you have warm spares for everything, but that means you're paying twice as much and still will have a non-urgent fire drill to replace the failed hardware so you're back to n+1.