[ Xue Yang isn't certain, but his suspicion is that the dismissive response means he's on the right track. He knows that there's a few things Wei Wuxian never looked into; whether they were because he wasn't interested, didn't have the resources, or thought the world would be better off without the knowledge wasn't Xue Yang's particular concern. But being dismissive means Wei Wuxian isn't interested now, even in theorizing. And he didn't outright deny it and give Xue Yang an opening to probe more for additional information so he could solve it himself, so it's probably a problem he doesn't want solved.

It can be another thing for Xue Yang to investigate more. Just knowing about the shape of the ritual and any details is a good starting point. ]

But you do have your side of it. Have you fulfilled his will? What were the side effects? Have you felt any disconnect from this body?