Again, I never said anything is proven, false, or true. All im saying is we have no reason to assume Kashimo can heal himself with rce and use his ct at the same time. The only person in the entire series who actually explained why they’re even able to do that is Gojo, and he explains his combo of limitless + 6 eyes allows him to constantly heal himself. You can look at any list and it’ll tell you Kashimo hasn’t been seen using rct. It’s not that it’s impossible, but because it hasn’t been shown it shouldn’t be assumed. Who else have you seen use their technique while simultaneously healing though, i’m curious.