I agree that Yudkowsky is neither a scientist nor an academic. (As for being a head of state, I think you're thinking of Elon Musk :-).) Do you think (1) we al

I agree that Yudkowsky is neither a scientist nor an academic. (As for being a head of state, I think you're thinking of Elon Musk :-).) Do you think (1) we already know somehow that significantly-smarter-than-human AI is impossible, so there is no need to think about its consequences, or (2) it is irresponsible to think about the consequences of smarter-than-human AI before we actually have it, or (3) there are responsible ways to think about the consequences of smarter-than-human AI before we actually have it but they're importantly different from Yudkowsky's, or (4) some other thing? If 1, how do we know it? If 2, doesn't the opposite also seem irresponsible? If 3, what are they? If 4, what other thing? (I am far from convinced that Yudkowsky is right, but some of the specific things people say about him mystify me.)