Vacher's Able to Manipulate Memories

I'm wondering if Vacher came up with a way to push past whatever blocks endowment put up and he thinks he did a wrong thing that basically like he formed the five scholars. But of all the people, it seems like he doesn't remember as much as the other five scholars do. No, because what if it's Vacher? We don't know this for sure. Like Light Song, he was heavily motivated by wanting to remember his past. Maybe Vacher was similarly motivated. And that's the thing that he figured out. That leads him down his slightly more philosophical leanings throughout all of the different parts we see.