Yes, the security is terrible, but that's not my concern ... that is, I just assume the security is terrible and that everyone understands that ... it's just a

Yes, the security is terrible, but that's not my concern ... that is, I just assume the security is terrible and that everyone understands that ... it's just a given. The real issue is the complexity of "smart" systems and how that complexity grows exponentially as you connect them together. It's just a rabbit hole you can never climb out of. Or, in the words of _Normal Accidents_, a book everyone should know well, tightly coupled systems with interactive complexity fail in a predictable way that you should expect. Add some production pressures (perhaps in the form of your wife needing the thermostat to raise right now) and you're sunk.