""Didn't she tell you that theory is still functional?" the boy named Crow says. "So that's the answer. It's still a functioning hypothesis. That's all I can tell you." "A working hypothesis until some good counterevidence comes along." "You got it," Crow says. "And I have to pursue that hypothesis as far as it'll take me." "That's it," Crow replies pointedly. "A theory that still doesn't have any good counterevidence is one worth pursuing. And right now, pursuing is the only choice you have. Even if it means sacrificing yourself, you have to pursue it to the bitter end.""