And yet they're arguing with themselves.
https://www.merriam-webster.com/dictionary/further
"Farther and further have been used more or less interchangeably throughout most of their history,"
"""
A polarizing process appears to be taking place in their adjective use. Farther is taking over the meaning of distance
the farther shore
and further the meaning of addition.
needed no further invitation
"""
That, of course, means all of this is new and in no way "correct" by any current modern standard. It's just something quasi-literate internauts like to quip in the comments. Oh, and university style guide authors and editors who consider themselves authoritative, but to whom no-one except community college English teachers defer.
Maybe I'm a little bit of a linguistic anarchist, I don't know.
