@TimmyJim It appears that an
unnecessary edit suggestion has been approved. A user has suggested an edit to change all instances of "farther" to "further" in the question. But from my understanding, the OP's use of "farther" was correct. As far as I know, "farther" is typically used to refer to physical distances, while "further" is more commonly used for figurative distances.
merriam-webster.com/dictionary/farther