Futurist Ray Kurzweil Pulls Out All the Stops (and Pills) to Live to Witness the Singularity, from Wired 16.04 (24 March 2008), by Gary Wolf.
…while artificial intelligence will render biological humans obsolete, it will not make human consciousness irrelevant.
I don’t want to be a bot:
Kurzweil predicts that by the early 2030s, most of our fallible internal organs will have been replaced by tiny robots. We’ll have “eliminated the heart, lungs, red and white blood cells, platelets, pancreas, thyroid and all the hormone-producing organs, kidneys, bladder, liver, lower esophagus, stomach, small intestines, large intestines, and bowel. What we have left at this point is the skeleton, skin, sex organs, sensory organs, mouth and upper esophagus, and brain.”
(note: if you’re worried about misplaced thetans, your church is elsewhere)