, Roger =ighfield, Douglas Rushkoff, Michael Shermer, David Christian, Juan =nriquez, Peter Woit, Nicholas Humphrey, Charles Seife, Aubrey De Grey, =cott Atran, Clifford Pickover, Mary Catherine Bateson, Colin Tudge, =oger Schank, Steven Pinker, Howard Gardner, Daniel C. Dennett We worry because we are bu