I mentioned the Artificial Intelligence version to a computer programmer friend the other day, whose son was at Mr. B’s birthday party, and he smiled and, in effect, said that I shouldn’t hold my breath. That seemed about right to me, as I have always thought AI was mainly hype.
SciFi writer Charles Stross calls this stuff "the Rapture of the Nerds." Nevertheless I tend to think the Nanotechnology one is actually close, and invisible, injectable robots someday will be scouring the plaque out of Mr. B.’s arteries. For starters.
THE TEXAS SCRIBBLER 
You asked about this on my blog and I forgot to answer.
My thoughts are that I don’t think we’ll get to the Uploaded Me in this century, but that we’re going to get real close. They’ve solved physics problems in computing that were considered unsolvable 5 years ago. But it’s not just the hardware, it’s the software that’s the real problem. I don’t think humans are capable of a benevolent AI. Way too much temptation. It’s gonna be interesting, though.
Hmmm. Immortality, eh? In AI terms, I was thinking more along the lines of the machines taking over and outdistancing us. In which case, they would decide what was benevolent. It certainly would be interesting.
Nanotechnology could be an alternative to AI in that it would allow copying (some of) our brain abilities onto a machine, instead of programming them.
I have my doubts in viability of current approach to AI in general.
That’s a thought. Pity we won’t be around to see what comes of all this.