A Proposal For A System To Replace Ordinary Record Merchandising (1983) 14 years ago
Read carefully. "[People today]..."
Things have changed since 1983. Back then people did know the difference. It was stilll an analog world and only the very beginning of digital recording.
People today _don't_ know the difference because the first thing they hear is lossy, loud digital, not acetate, vinyl or cassette. But if they were raised on analog, you can bet they would hear the difference.