>>149878163
>source for this garbage you keep spouting?
I'm now wondering how much attention you were paying during the series. Episode 10, Mei's conversation with Li discusses the issues with using time travel to solve problems. Li explains that the trick is to send information that isn't recognized as information. This is a recurring theme present in Ashihara's notes and is the series building up to and cleverly teasing the truth behind the song which comes full-circle in the finale.