@icedquinn @munin Coordination cost/complexity and opportunity cost can easily serve as a delimitation, if one doesn't just consider consequentialist ethics before setting off on omnicide (they have a lot of issues, but even then they would serve to show it doesn't work; that regardless of the possibly unacceptable ethical cost of the action itself, the result is a failure anyway).
Everything is related, true. That means very little without any understanding of practical system interactions.