“A $1,000 unit of computation has the computing capacity of approximately one thousand human brains.”
Inventor and futurist, author of The Age of Spiritual Machines
Said 1999Deadline Dec 31, 2029The Age of Spiritual Machines (Viking, 1999), Chapter 11 ('2029'), publisher's excerpt (Penguin Random House)
Dollar figures are in 1999 dollars; Kurzweil's own benchmark for one human brain is ~2×10^16 calculations per second, so this requires ~2×10^19 cps for $1,000.