““... there’s a common trick nature plays on its would-be investigators: resemblance, the human urge to map the unknown onto the already known, can be a snare. Just because something looks like something else doesn’t mean that the backstory for both must be the same. Rocks scattered across the sky may appear to be a rubble field left behind by an explosion…but unless you stop to think how else you might get there, you rely on assumptions not in evidence.””