I'm guessing one of these questions had to deal with a timetabling diagram. https://www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=0003zP https://www.edwa

I'm guessing one of these questions had to deal with a timetabling diagram. https://www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=0003zP https://www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=...