Link. An excellent, highly compressed summary of the relevant issues. Previously titled "The Concept of Existential Risk," but substantially rewritten.
I agree with "Earth originating" and "intelligent", but perhaps not "life".
If not, then the definition of life being used is probably wrong.
Perhaps try something more like: life is that which persists via copying.
Link. An excellent, highly compressed summary of the relevant issues. Previously titled "The Concept of Existential Risk," but substantially rewritten.