Yes, I think that's what he had in mind.
If you can hardcode a control system such that its only knowledge of the outside world is the Bitcoin Blockchain, a specific xpub, and a missile launcher, you can set it as a switch such that if that utxo moves to the next address, the missile is authorized for launch.
😬that is a scary thought. That one can launch a nuclear warhead from one’s phone so long as they have access to the internet and the bitcoin key. From anywhere.
Yeah it's pretty wild.
But imagine setting it up so that several independent parties within the military, government, industry, etc have keys required to sign it. Voting to start nuclear war with signals that cannot be exploited, because a partially signed transaction is unforgeable.
You can keep adding more and more layers of physical power projection to secure each element of the system, which is pretty neat.
I tend to reject any perspective that says bitcoin isn't money.
E.g. bitcoin is just a database, bitcoin is just a protocol, bitcoin is just a security system.
Like, take any system, the body, economy, nature, a tree, and say, these things are just energy and/or resources, and then call that an objective perspective.
They are all complex systems, and are all greater than the sum of their parts. Also, let's not leave out the underlying spiritual nature of all this too.
I do like the book so far, except that bitcoin is tied to it. Get off my lawn. 😂
You have inspired a meme 
Yup. For example, if you introduce an invasion species into an ecosystem, you can ruin an ecosystem. Trying to categorizing a system is futile.
If the system is ruined, then it’s not resilient. If it’s not resilient, then why bother.
