http://www.space.com/18811-multiple-universes-5-theories.html
Metaphorically, each universe could be like a layer on a cosmic hybrid_drive.
http://www.pcworld.com/article/2012223/hybrid-hard-drives-how-they-work-and-why-they-matter.html,
http://www.seagate.com/internal-hard-drives/laptop-hard-drives/laptop-solid-state-hybrid-drive
http://jfvrinfo.blogspot.ca/2013/09/the-city-of-honolulu-and-time-travel-etc.html
