Could a mile-long cruise ship turn seas into a floating city for 80,000?

A proposed $16 billion venture called the Freedom Ship would be a mile-long, 2.3-million-ton cruise ship capable of housing up to 80,000 people (50,000 residents, 20,000 crew, 10,000 day visitors) and would include amenities from museums and hospitals to a stadium and schools, effectively serving as a floating city powered by nuclear fuel; its enormous size would prevent docking at any existing port, with an estimated build time of 3–4 years once funded.