Briefly, what does everything() do.

[komwomak]

https://github.com/b-rodrigues/modern_R/blob/46bc8fb27df05a4137ae39f2dfdf25be0d4c3c77/04-descriptives.Rmd#L515

everything() documentation seems thin on the ground. It perhaps means everything_else()? But there are dark allusions to non-intuitive behaviour in the presence of minus-excluded column references??