It's curious that Kurzweil's predictions about transcending biology align so closely with his expected lifespan. Reminds me of someone saying, if you ask a researcher for a timeline of a breakthrough they'll give you the expected span of their career.

Hegel thought history ended with the Prussian state, Fukuyama thought it ended in liberal America, Paul thought judgement day was so close you need not bother to marry, the singularity always comes around when the singularians get old. Funny how that works