Columbus sailed the ocean gold
You and Joe Biden ought to check your calendars; it's been the 21st century for well over a decade now.
Also, real libraries have old and out-of-print books, rare books, maps, art collections, local publications and artifacts, and plenty of things that are highly unlikely ever to be digitized, or which history -- and historians! -- demand be kept for the public good. In this information age, we need librarians more than ever. Get rid of libraries and you scrap civilization itself.