>Recreate the black box in a modern tool that’s easier to maintain. I assume in the newer trains they already recreated new systems. For the old trains it's ju

>Recreate the black box in a modern tool that’s easier to maintain. I assume in the newer trains they already recreated new systems. For the old trains it's just not worth it to modernize, as it's incompatible with the newer trains and thrown away eventually. And who knows, maybe they gave it a try in the past, and it did not work out. What you wrote reminds me a bit of a friend who asked me 15 years ago when he installed Java: "Who uses Java anyway?". You just have to change your perspective from an end-user. Same for Windows 3.11.