Yeah, it's all going to depend on how many safety checks are in the current orchestration and unit testing, and how well they're respected/documented. And whether people decide to override them just to shove something out the door.

I'll pray for a subtle bug that causes a slow degradation that eventually reaches a tipping point but has been going on so long that it's affected many pieces of production for as far back as they've got backups and can't just be dropped for some reason. I'm not sure if Twitter has customized their data storage layer at all though, like even if they're using a bunch of document databases or postgres and suddenly things are just in such a state that they're getting some obscure segfaults or something, it's still a system that there are a lot of people with expertise with who can probably figure out how to fix it.

There's also always wildcards like the possibility someone hacking in specifically to break as many things as possible. Honestly it would probably hurt Tesla's share price by association so there's financial motivation for sure. Last time they got infiltrated, the person clearly had no real plan beforehand and just squandered it.