[There's a soft, hesitant "mmhmm" in response to the original bit of conversation. What else is there to say, when the rest is so fascinating?]

That's a good way to put it. We're modeled off of humans. We've existed in the star system that I'm from for over 600 years... so I'd say that means it's worked out alright, hmm? We even have one of the planets to ourselves. [That's said with a neutral tone, not her usual chipper one.]

...ooh. Naturally-occurring? So the planet itself generates synthetic life? That's amazing!