Function look_again 

fn look_again(
    here: &str,
    seal: &Seal,
    vault: &(PathBuf, [u8; 32]),
    region: Option<&Region>,
    now: i64,
) -> bool

Once a day: what the phone holds measured for the settings; the texts deleted on it marked so in its log, a line each (the archive keeps the text); and a text the reader passed while Android hid it (in the outbox as a newer one came) read now. Whether a line was written.