Experimental procedures are less regulated than standard practices. "Kurzweil and Grossman justify it not so much with scientific citations — though they have a

Experimental procedures are less regulated than standard practices. "Kurzweil and Grossman justify it not so much with scientific citations — though they have a few — but with a tinkerer's shrug. 'Life is not a randomized, double-blind, placebo-controlled study,' Grossman explains. 'We don't have that luxury. We are operating with incomplete information. The best we can do is experiment with ourselves.'"