Big Sci-Fi has been driving technology - and thus, our modern culture - for decades now. There's not a single advance in our modern lives that wasn't speculated first, by some sci-fi author.
So I don't really think that 'this guy makes amazing predictions' is such a new-worthy article. All this is doing is promoting the Kurzweil brand, and by proxy, the Google brand.
What does get me more interested, is the general reaction to cultists like Kurzweil and Wolfram; because these reactions are a far greater predictor of the future than the original subject. If the industry says "hmm.. Kurzweil is a genius, lets listen to what he has to say" - well then, its a self-fulfilling prophecy.
tl;dr - postulate what will happen, then MAKE IT SO. This is the mantra of any and all technologists - not just those with the wherewithal to spend their idle time pimping themselves, as both Kurzweil and Wolfram do.