Edit:
I remember being in a grad-school business class on computers. This was in 1982, in the days of CPM-80.
There was discussion about the newly-developed CDROM disks. Several folks asked the question, "Why do we need 650 MB of storage?" "How could people possibly use that much space?"
In context, how does that make sense? CD came out in 1982 explicitly to be filled with audio -that's why the capacity was needed. By 1985, CD-ROM could contain any data but likewise had to be pressed. It was not until the CD-R that user storage was possible and that did not even become relatively affordable until 1997.