He tells what the design does, i.e. it uses tritium-deuterium, creates a high beta configuration, provides very good containment and stability but unfortunately he gives no details on how exactly it does these things. I hope the reason he is now able to discuss this in a public forum is because they are in the process of publishing scientific papers on it but we will just have to wait and see.
When I traveled to Namibia a year before, I had met a daredevil yachtsman with his eyes on a big prize. But now that he has it, all Larsen can talk about is the hydrodynamic frontier. “What we are discovering is that things are not as black-and-white going through this barrier as we thought they were,” he says. The mixture of air, vapor, and very high speed water wrapping itself around a boat at the limit is dynamic and extremely hard to model by computer or even simulate in a high-speed flow tank. To understand it, you must explore it directly, through experimentation. You need SailRocket.