Bloggingheads.tv can't exactly call up, say, the President of France and get him to do a diavlog, but they have some street cred with mid-rank celebrities and academics. With that in mind, how would you fill in this blank?
"I would really love to see a diavlog between Yudkowsky and ____________."
How hard the software will be is an issue to which currently nobody really knows the answer at the moment - AFAICS. We might all have our gut feelings - but I think nobody who is trying to be rational really knows - or even has a particularly low level of uncertainty just now.
Commodity hardware won't get there until at least 2017 - and software lags behind hardware - so probably some time after that we will have affordable machines that can do a lot of what our brains can - but how much after that... my assessment is that nobody really knows.