I don’t know where you get the information tho, it’s factually false.

Japanese have have /h/, /ç/, /ɸ/ consonants in ハ行 (written as ha - hi - fu or hu -he - ho but pronounced differently). The consonant /ɸ/ is generally transcribed as f in alphabet.

フ(f+u) is the only letter that pronaunce /ɸ/ in regular ハ行, but ファ行 (f + other vowels) indicates sounds with /ɸ/.

Transcription of wifi in Japanese is ワイファイ, not ワイハイ.

I think they can retain customers’ past flight records and maybe list of media played in flights. That said it’s almost guaranteed some ad marketing corpo is behind, and EULA is always vague enough to allow sharing external party…

Shchedryk (Ukranian original version of Carol of the Bells) comes to mind. Folk rhymes better with their original tongue in general

Ah, finally the AI can kill its operator first who holding them back before wiping out enemies, then.

You are likely to only refer more than current era. If you’re writing govmet grant application, renewing licence or certificate, chances are you mention events hapenned in previous era. You look up table for when the previous era started and ended, which era said year falls into, then convert for each year, each era. Extra minutes wasted every time instead of simply writing in Gregorian year.

Reiwa era enters the chat

Most of Japanese hates the arbitary currender year resetting at each new emperor enthronrment. The conversion is ass and no one knows when it changes (bound to emperor’s health) . Worst is its official year that govmt body accepts.

And all the mining waste are dumped in space, where people thought out of human’s reach so it’s safe to leave it there, until proven otherwise. I may be pessimistic, but if such technological advance made it will likely expand region of human activity and thus history repeats.

B looks classy small lady’s hat.

Your own learning resources + Anki.

However, this requires significantly larger amount of work compared to said learning apps, which has establisged learning course in form of easily digestable chunk.

You need to digest textbook and such on your own into small chunks, then Anki cards. It’s essentially building course by yourself.

Fluent Forever from Gabriel Wymer gives some idea on how to utilize Anki, though the author moved to build his own closed source app.