One axiom that holds true more every day is GIGO (Garbage In Garbage Out). That was the buzz word early on when I first got involved with computer programing and Fortran & Cobal were the thing d'jour. Now with FaceBook etc, social networking has given new life and a little different meaning to (that) term.
Had a similar experience a few weeks ago. The 14-year-old boy who cuts my grass was over and I had the music channel on the TV listening to songs from the 1970s. When he asked what kind of music was that my immediate reply was "good music."