For those of us not well schooled in these matters, can you explain or link to why it's a crazy idea? I am intuitively sympathetic to Yudkowsky, but emulations first doesn't seem obviously crazy.
I've been trying to put together a survey paper about why uploads coming first is not at all crazy. Whether it's more likely than local-super-AI-in-a-basement, I don't know and leave that to the experts. But brain emulation, as far as we currently understand it, is very similar to the problem posed by landing on the moon circa 1962 -- a matter of scaling it up (though we certainly have much more than a decade to go for mind emulation).
Ken Hayworth, now working in the Lichtman connectomics lab at Harvard, has recently written up such a survey paper to appea...
Link: overcomingbias.com/2011/07/debating-yudkowsky.html