He frowns, because that returns niggling details to the front of his mind. Yondu's already handing over his phone, which is great, because Wei Wuxian has trouble doing anything fancy on his at this point. Only his time on train has him even recognising still how to properly use the thing, so sending messages, looking up information, those things? He's got it.

The rest is brushed aside. "In other systems that have been entirely destroyed like that, have there been survivors? Energies that escaped out through whatever void ties they had in place? If I recall, Diagad was just figuring out its own relationship to the void in the time before it was destroyed." Was this even a singular entity? Though, at another, longer pause.

"How many living worlds were in that system?"

The issue of getting people out of this place weighs even more heavily on his mind. "Hey, that tethering thing. If people aren't tethered to one of the vessels, do they end up tethered to this place, or could we tether them back to their own worlds? Something has to call you home," he says, nodding to Wash, "Because we're all tied to that place, wherever it is, even when it doesn't exist. Case in point."

A gesture to the room around them, but more broadly, this imitation of what Diagad might have been.