Actually, back in Showa-Heisei, there were plenty of the computerized system existed already. Many of these system, where they could not be patched, is "assumin

Actually, back in Showa-Heisei, there were plenty of the computerized system existed already. Many of these system, where they could not be patched, is "assuming" the system is still in Showa. (So the system thinks this year's Showa 93) They will see Y2K like problem in 2025 (Showa-100) if these systems are still active somewhere (as they may not handle >99) and to less extent, same thing may happen in 2088 (Heisei-100) I'm thinking their tendency of ground-up development of those internal systems in Japan would make this a lot more complicated.