It is virtually impossible to see Ready Player One, Steven Spielberg’s wild ride into the world of virtual reality, just once. There is so much going on in this movie, both retro and futuristic, that it is hard to compute in one sitting. A pop culture treasure hunt of the past 30 years as seen through the prism of a VR Disneyland called Oasis, Ready Player One rotates from the real world of 2045 to a virtual one filled with references to movies, music, personalities…