Can a human embryo actually develop well in zero gravity? We just don't know. To find that out, that means we'd have to literally sacrifice embryos probably. Some people just wouldn't. It's a non-starter for lots of people. But we do know that the sperm survive. Sperm survive. As your earlier said. And nobody cares about sperm. That's so exciting. That's the best of engineering is like that kind of testing. What else about designing experiments? What kind of stuff do you want to get in there?"