Single cigarettes were the beginning of the end for David Renteln, the cofounder of Silicon Valley's cult-favorite liquid food startup, Soylent ... the site is 21 years old or older.

Pre-Star Wars, '70s Hollywood loved its post-apocalyptic sci-fi dystopias?think The Omega Man, Rollerball and Logan's Run. With a brilliant cast?Charlton Heston, Edward G Robinson in his final role?

This promotional short film for "Soylent Green" (1973) begins by showing clips of films that depicted what the future might be like beyond Earth. The narrator then discusses the origin of the idea ...