The first step in the Deep Sentinel program, one of the most ambitious ocean-engineering projects in decades, will be completed this year. This initial step, called Vanguard, will shelter three aquanaut-scientists at depths of 100 meters. Eventually, the project will create a modular underwater habitat system that will let scientists live underwater for weeks at a time.
This brings to mind the 2005 show Sealab 2021—we’re only four years behind the concept. While I would be open to living in such a structure, I would need the ability to swim out in case of an emergency. At a depth of 100 meters, however, I’m not sure that would be feasible with out gear.