I saw a comment on reddit pointing out that planes cannot take off without the baggage weight/distribution calculation. And arriving flights cannot have their b

I saw a comment on reddit pointing out that planes cannot take off without the baggage weight/distribution calculation. And arriving flights cannot have their baggage scanned to show up properly at baggage claim. The latter seems like something that could be overridden with pen/paper, but I can understand how the weight calc is intricately tied to the scheduling system. I just can't believe they can't have a fall-back at each airport: a simple program that runs on a PC that certifies a single flight based on who physically showed up and how heavy their bags are.