Robert Silverberg's novel "Shadrach In The Furnace", published in the 1970s, had a mention of some data being transported on a "billion-bit bubble chip". In retrospect, that's entertaining in 3 ways: 1) bubble memory didn't go anywhere, and 2) a billion bits is no longer an unthinkable amount of data, 3) solid state memory (which we'll take to include bubble chips here) still hasn't surpassed rotating memory (hard drives, tapes) at least in cost per bit. Maybe someday but not yet.