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Missile defense is NP-complete

smu160.github.io

11–20 of 446 posts

Re: Missile defense is NP-complete

#13
post #2

It's been known since the 1960s that effective anti ballistic missile defense is impossible.

A lot of things involving rockets and putting things in space have changed since the 1960s.

Observability has changed in most other ways we have regressed.

Re: Missile defense is NP-complete

#14
post #8

The author explains that this problem is actually adversarial, in the sense that the attacker gets to observe defenses and allocate warheads and decoys accordingly. Thinking of our current circumstances, this suggests another cost of war: our offensive capabilities, as well as our defensive capabilities become more observable. Our adversaries are studying our strengths and weaknesses in Iran, and they will have a muc…

If we really want to put a certain hat on we can also say those adversaries have an incentive to not prevent (or even incentivize) those wars for that same reason. Even if that's by helping along a guy that is easy to manipulate through a childlike ego become president.

Re: Missile defense is NP-complete

#15

Earlier quoted context omitted.

A lot of things involving rockets and putting things in space have changed since the 1960s.

Have they, really? * Small rockets can now land themselves. Anything else?

Computer guidance? Better materials? Better telemetry?

Re: Missile defense is NP-complete

#16
Two more sobering axes to introduce: cost and manufacturing capability.

Numbers are hard to find for obvious security reasons, but using the numbers most optimistic to the defender[0] suggests an adversary using a Fatah type hypersonic is spending 1/3rd the cost of an Arrow interceptor, and is launching missiles that are produced at a much faster rate. Interception is deeply asymmetric in favor of the attacker.

[0] https://www.jpost.com/israel-news/defense-news/article-82314...

Re: Missile defense is NP-complete

#17

Would be interesting to know how the probabilities change once all your X band radars are destroyed. And then again how they change when all your L band radars are destroyed...

> And then again how they change when all your L band radars are destroyed...

Connection reset by Yugoslavs with microwave ovens

Re: Missile defense is NP-complete

#18
post #8

The author explains that this problem is actually adversarial, in the sense that the attacker gets to observe defenses and allocate warheads and decoys accordingly. Thinking of our current circumstances, this suggests another cost of war: our offensive capabilities, as well as our defensive capabilities become more observable. Our adversaries are studying our strengths and weaknesses in Iran, and they will have a muc…

there is a benefit as well, though, as it makes your threats credible.

Re: Missile defense is NP-complete

#20
post #8

The author explains that this problem is actually adversarial, in the sense that the attacker gets to observe defenses and allocate warheads and decoys accordingly. Thinking of our current circumstances, this suggests another cost of war: our offensive capabilities, as well as our defensive capabilities become more observable. Our adversaries are studying our strengths and weaknesses in Iran, and they will have a muc…

Or perhaps they will learn they are outmatched, lack the resources and technological capabilities to compete, and deterrence will have been established.
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