Also beware of people with strong opinions about way too general things in areas where specific things are.. specific, and where discussions of the sort you started are nearly almost a bad sign. Without something concrete to solve/look at these discussions are more religious in nature. You can say whatever, no way to prove or, worse, disprove. When people get into heated discussions there is a good chance that there is no practical test possible because the discussion is not about anything concrete but about "ideas" - where everybody has different ones for the same keyword(s).