“We’ll only do it if we all agree. And before you answer, consider the consequences. If we mess up the supply rendezvous, we die. If we mess up the Earth gravity assist, we die. “If we do everything perfectly, we add five hundred and thirty-three days to our mission. Five hundred and thirty-three days of unplanned space travel where anything could go wrong. Maintenance will be a hassle. Something might break that we can’t fix. If it’s life-critical, we die.”
