ism 41-46, xi, 315, 316, 351 free will and 315 Deutsch, David xi, 56, 293, 309 Dexter, Colin 260 Dick, Philip K 324 diffusion MRI 106 digital art 129 Digital Equipment 307 digitization 289 of life 293 Dijkstra, Edgar 3 Dilbert 313 Diophantine equations 238, 239, 240, 249, 251 Diophantus 239 divergent thinking 298 DNA 10