> I remember my first time having a meeting at Facebook and observing none of the doors had keyholes and thinking "hope their badge system never goes down"

Every internet-connected physical system needs to have a sensible offline fallback mode. They should have had physical keys, or at least some kind of offline RFID validation (e.g. continue to validate the last N badges that had previously successfully validated).

Breaking the glass to get in to fix the service is totally a good business move.

A few hundred bucks of glass Vs a billion wiped off the share price if the service is down for a day and all the user's go find alternatives.

In case of emergency, break glass...

...the doors are glass right?

Zucks personal conference room has 3 glass walls, so I’ve been amusing myself imagining him just throwing a chair through one of the walls

That glass is bullet resistant.

Do they (you?) call him that at FB?

Yes, "Zuck".

I'm assuming someone in building security has watched the end of Ex Machina...and applied some learnings, or not.

All doors are glass with the right combination of a halligan bar, an axe and a gasoline powered saw.

And I guess beyond that point, walls are glass. Or you need explosives.

Aaaaaaand it's down!

maybe they're open by default, like old 7-11 stores when they went 24hrs and had no locks on the doors :)