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
Sci-Fi Dine-In Theater Restaurant the Tides" (broiled fish), and "Journey to the Center of the Pasta" (vegetable lasagne), but these have since been replaced with more descriptive names. A popcorn bisque was once on the menu, but it was removed due to poor reception. In 2003, EGV Entertainment, a movie theater operator in Thailand, opened the EGV Drive-in Cafe in Bangkok, explicitly modeling the restaurant after the Sci-Fi Dine-In. Wichai Poolwaraluk, the company's executive president and chief executive officer, visited the Sci-Fi Dine-In in 2000, and was inspired to open a similar restaurant. He said that, while he was eating at the Sci-Fi Dine-In,