In almost every piece of science fiction, Japan is devastated by some maniacal genius, a meteorite or nuclear war, so upon hearing about the government's plan titled Back-Up Tokyo, an initiative to built a substitute city in case of a disaster, it didn't strike me as unreasonable.
During World War I, the French built an entire replica of Paris in order to confuse the daily German bombing sorties, and the idea behind Back-Up Tokyo is similar. Instead of protecting the city from a clear and present enemy, however, it's meant to give the residents of the world's densest city a replacement for their destroyed homes and communities in the event of a natural catastrophe. Codenamed 'IRTBBC' (Integrated Resort, Tourism, Business and Backup City), the metropolis will be built approximately 300 miles west of Tokyo, and will be designed to house 50,000 residents, 200,000 daytime workers and an emergency seat of government.
Let's just hope they don't rename the alternate city Neo-Tokyo, lest those science fiction tropes become a reality!
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