Further, for reduced gravity, in space or Moon or Mars, constant or supplemented, surfing research a year or so ago suggested, we basically have no clue. For i

Further, for reduced gravity, in space or Moon or Mars, constant or supplemented, surfing research a year or so ago suggested, we basically have no clue. For instance, it's oft repeated that artificial gravity requires large radii to avoid distress. And yet, centrifuges can be as small as 2 m, as currently on ISS. And people are diverse in their tolerances. And details of motion restriction matter. It's not a small design space. But how does tolerance vary? How to select or train for it? We don't know. Health side, is the Moon sufficient gravity to blunt various micro-gravity effects? Is Mars? Is some pattern of various levels of gravity exposure? While sleeping, exercising, working? We've no clue. > I hope more funding goes into microgravity effect My main takeaway was, once Starship can provide lower-cost long-term vibration-tolerant physically-larger orbital housing for more people ... there's a large space medicine research agenda that's been backlogged for years on lack of plausible cost opportunities.