Yeah, that one is kinda goofy. However, his charting of Solar power following a Moore’s Law curve is pretty compelling. If it holds, Solar power will essentially be “free” in about 15 years (after 7 more cycles with each cycle being approximately 2 years).
Also, he built a sight-reader that gave my blind father the ability to scan books and have a voice read them, so Dr. Kurzweil is alright by me.