Peter Scholze and his co-author Dustin Clausen believed the proof was correct, but Scholze remained concerned that it might be wrong because nobody else had read it.

“You know, Peter's like, "No, I think it's right. My co-author thinks it's right, Dustin Clausen. No one else has read it. Maybe it's wrong." So six months later, we'd read it through and was like, "It's okay.”