Proposition Infinity the method used for "Proposition Infinity", as the team felt that most viewers would not have a strong opinion for or against robot and human intermarriage, thus lightening the potentially polarizing nature of the source material. "Proposition Infinity" was inspired by the political battle over California Proposition 8 in the United States and heavily satirizes the controversy over same-sex marriage. The title is a reference to California Proposition 8 with the "8" sideways, thus becoming the symbol of infinity (∞). The camp where Bender is being reprogrammed parodies conversion therapy camps for homosexuals. The episode also satirizes the people against
The Sky Moves Sideways version of "The Sky Moves Sideways" which includes both "Prepare Yourself" and "Stars Die". A triple vinyl edition was also released in the same year, by Headspin Music record label, including a 7-inch single with two versions of the song "Men of Wood", the first was taken from "The Sky Moves Sideways" recording sessions and the 2000 mix was previously included in the "" compilation. A double vinyl edition was released in 2012 by Kscope. This vinyl edition features a new "anti-loudness" remaster which is closer to the natural dynamics of the original masters. The track list was the same