I'm likewise vaguely aware of Kurzweil's reputation and accomplishments, and vaguely recall mention of a big prediction in the field of AI, a very optimistic one according to critics IIRC.

That's about the extent of it. I wasn't aware he had publicly made other predictions.

Problem is, how would one go about verifying this? Not to mention that if I wasn't already primed to not click the link, I would probably have immediately searched for the predictions in question just to know the subject under discussion.

On that note, thanks and good move Stuart, warning us beforehand about the spoiler/unblinding link.