/sci/ - Science & Math

>>3582773

>I think ultimately we will have both floating cities and underwater cities.

Actually I do agree with this, but they won't be designed like seasteads. You need to have no surface structures whatsoever and have most of the floating platform underwater and vertically oriented in order to successfully endure violent storms. This would result in a structure that is one half seastead, one half undersea colony, like the picture. These would incidentally make excellent ports for submersibles carrying people and goods between a seafloor colony and the surface platform, where ships and helicopters could receive those goods for shipment to the mainland.

I love the idea. The problem is, storms. You can make it safer either by fully submerging it below 200 feet or if it needs to be semisubmersible, built it vertically like a tower with the vast majority underwater for stability like in the picture.

The benefit of this approach is you can build it like any other tower on land, but upside down, and on a platform in the shipyard which can then be floated out to sea and sunk until the tower is mostly underwater. That's when you (very carefully) flip it over.