The nice thing is that you don't need to decide what to believe. You just keep doing experiments and, if well designed, they'll tell you what's true anyway. The

The nice thing is that you don't need to decide what to believe. You just keep doing experiments and, if well designed, they'll tell you what's true anyway. These animal model experiments are not intended to prove applicability to humans, they're intended to prove that you can take the next (tiny) step along the (extremely long) road to human applicability.