I don't think that means cutting him some slack, that means that he shouldn't be so foolish as to make such specific claims about such specific timings. Also,

I don't think that means cutting him some slack, that means that he shouldn't be so foolish as to make such specific claims about such specific timings. Also, my impression of Kurzweil was that he didn't think in S-curves, but assumed technological progress follows an unbounded exponential curve - which is why he thinks he'll become immortal and bring his father back from the dead.