What would it take to purposefully bring about the end of the world by "gray goo"?

Suppose a mad engineer needs the world destroyed by next Tuesday. For efficiency's sake, he considers "Gray Goo," a hypothetical end-of-the-world scenario in which self-replicating machines devour the entire planet while building more of themselves.

Realistically, what would be required (in terms of technology, resources, schedule, etc) to successfully transform the planet into all-consuming nanomachine?

Ethics aside, what are the fundamental flaws of the Gray Goo scenario?

What are the properties of a nanomachine network engineered to become Gray Goo?

This is not so much a question on how to write a believable Gray Goo disaster as a reality check of the concept itself.

(I may be inspired to resume my mad-science degree this turns out to be feasible, so please do your best to dissuade me today :) )

posted over 7 years ago

Itolet‭

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