Ah,
"...AI explanations as we are of each other's\u2014no matter how clever"
^^^^^^ is counted as one column!
(seen with LC_ALL=C).
At least that should be easy to fix.
After that is fixed, try with
$ locale
LANG=zh_TW.UTF-8
LANGUAGE=en_US:en
LC_CTYPE=zh_TW.UTF-8
LC_NUMERIC="zh_TW.UTF-8"
LC_TIME="zh_TW.UTF-8"
LC_COLLATE=C
LC_MONETARY="zh_TW.UTF-8"
LC_MESSAGES=C
LC_PAPER="zh_TW.UTF-8"
LC_NAME="zh_TW.UTF-8"
LC_ADDRESS="zh_TW.UTF-8"
LC_TELEPHONE="zh_TW.UTF-8"
LC_MEASUREMENT="zh_TW.UTF-8"
LC_IDENTIFICATION="zh_TW.UTF-8"
LC_ALL=
and see if it is fully fixed for you or not. Thanks.
