For an old-fashioned academic CV, you have to include every publication, leaving nothing out. (So, you can pay a price for that brief dabbling in fuzzy logic -- it hangs around forever.) By mid-career, the CV can run to many pages.

Once you reach that point, you have to also maintain a short version (maybe 2-3 pages), and a short-short version (1 page), usually for proposal submissions, brief bios, etc.