One particular home is a brand new, probably a $25 million dollar plus creation, very modern and sleek. The entire house, HVAC, lighting, cameras, gates, door locks, etc. is controlled by a central service on a network. Things go wrong all the time. When the system goes down, nothing works.
Let me guess: that home, as designed and built had no built in batteries or generator to pick up the load when the inevitable power failure occurred. How long did it take for that brain phart to be corrected and how long was the house dark when the omission was first discovered?