"You are beginning to understand the Freedom Ship concept of a massive ocean-going vessel. With a design length of 4,500 feet, a width of 750 feet, and a height of 350 feet, Freedom Ship would be more than 4 times longer than the Queen Mary. The design concepts include a mobile modern city featuring luxurious living, an extensive duty-free international shopping mall, and a full 1.7 million square foot floor set aside for various companies to showcase their products."
Proposed during the first dotcom bubble, the Freedom Ship sort of fell of the radar until 2013 when the company announced the project had been resurrected. Which has me imagining a Seasteading Index for tracking tech bubbles similar to the infamous Skyscraper Index.