 That's their telos. That's their goal in life, Darwinian selection. What they don't want to do is to kill their hosts rapidly. Right. Because then they don't get the spread. That would be Ebola, right, that kills the host so relatively rapidly that it quickly burns out, right? Exactly. And that's why we don't have pandemics of Ebola, because it can't spread rapidly. It's not highly infectious, and it's not airborne.