Three Laws of Robotics card-readers in "The Caves of Steel" have a capacity of only a few kilobytes per square centimeter of storage medium. "Aurora", in particular, presents a sequence of historical developments which explains the lack of nanotechnology — a partial retcon, in a sense, of Asimov's timeline. There are three Fourth Laws written by authors other than Asimov. The 1974 Lyuben Dilov novel, "Icarus's Way" (a.k.a., "The Trip of Icarus") introduced a Fourth Law of robotics: Dilov gives reasons for the fourth safeguard in this way: "The last Law has put an end to the expensive aberrations of designers to give psychorobots
AXN Sci Fi AXN Sci Fi AXN Sci Fi was a European pay television movie channel owned by Sony Pictures Television. It was available in Italy, Poland, Hungary, Ukraine, Russia, Romania, Kazakhstan and Bulgaria on Sky Italia, Boom TV, Bulsatcom, Cyfra Plus, Cyfrowy Polsat, Digi TV, Dolce, iNES, Max TV and N. The channel was launched in Czech Republic and Slovakia in October 2007. On 12 July 2013, Sony announced that AXN Sci Fi and AXN Crime would be replaced by AXN Black and AXN White. On 1 October, AXN Sci Fi was replaced by AXN Black, however Italy edition was unaffected. On