A spectre is haunting Unicode

Some meaningless Japanese characters (known as ghost characters) have been included in Unicode — and no-one knows why. Although there are some pretty good theories.

[S]everal of the added characters had no obvious sources, and nobody could tell what they meant or how they should be pronounced. Nobody was sure where they came from. These are what came to be known as the ghost characters (幽霊文字).

See also: Big tech warns of ‘Japan’s millennium bug’ ahead of Akihito’s abdication.

Big tech warns of ‘Japan’s millennium bug’ ahead of Akihito’s abdication

To be filed under ‘you learn something new every day’ — a series of potential millennium bug-style issues that could be faced when Emperor Akihito of Japan abdicates. Japanese calendars effectively begin from zero with a new era every time there is a new emperor.

Akihito has been on the throne for almost the entirety of the information age, meaning that many systems have never had to deal with a switchover in era.

Moreover, Unicode will have to create a new character to represent the new era — which has not yet been named. This clashes awkwardly with the planned release of Unicode 12.0.

But this is the most incredible scenario:

Many older computers, with aspects dating back to before the end of the Shōwa era in 1989, have never been updated to reflect the new era, and still think the year is Shōwa 93. That means Japan could face another mini Y2K problem in 2025, as those systems attempt to tick over to a three digit Shōwa year they can’t cope with.

The amazing psychology of Japanese train stations

How Japan uses behavioural science (nudge theory) to keep its railways flowing efficiently.

Tokyo is home to the world’s busiest train stations, with the capital’s rail operators handling a combined 13 billion passenger trips annually. Ridership of that volume requires a deft blend of engineering, planning, and psychology. Beneath the bustle, unobtrusive features are designed to unconsciously manipulate passenger behavior, via light, sound, and other means. Japan’s boundless creativity in this realm reflects the deep consideration given to public transportation in the country.