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<p>“Do you want to physically destroy the Earth …”
Currently, yes.</p>
<p>“… or just kill everyone on it?”
That would also be sufficient for my purposes, but it seems at the moment that the method that would have the highest guarantee of total extinction of humanity would be destruction of the Earth. I have thought about just using a lot of h-nukes, among other methods, but realized that there would be a higher probability of remaining humans after execution of the plan.</p>