 can mitigate some of the muscle atrophy that occurs in weightlessness, but not all. But the key point to this result is that it might be possible to create a spinning space station that doesn't go at full speed to get 1G. You do it maybe at half G, and you can solve the problem. And then engineering problems go significantly down if you don't have to go as fast as 1G, John. That's the real bottom line of this.