Earlier quoted context omitted.
Luu's piece linked his analysis! Kurzweil scores 7% accuracy. If you scroll to the appendix he grades individual predictions. https://danluu.com/futurist-predictions/
If you grade what was linked by whether it is "approximately achievable today", and not some less interesting metric like being predicted for the correct year or if it was outcompeted by some other thing, he's closer to 70-90% depending on how close you're willing to grade. It's very easy to say 'person X made a highly specific testable prediction, while respectable people said nothing like it would ever happen, and…
Can you give some examples of predictions he got roughly right where this applies?
(Not a gotcha, I'm genuinely interested, because this is the key for me when thinking about whether to give credit for 'close' or 'right but early' predictions. If you're predicting things that most others have dismissed as impossible, or nobody has even thought of, then it's pretty impressive and interesting when you turn out be even roughly correct. (I'll still ding your credibility if you are overconfident about dates and details, but I'll do that while paying plenty of attention to what you say next.) If you're predicting things that are already suspected to be possible, though, and what makes you stand out is your confidence and your timelines, then I'm not going to be very interested when some of your predictions turn out to be fairly close to the truth.)