Comparing figure skating (a sports with artistic presentation) to greatness in music on the basis of longevity is ????
Hey old butting buddy

My example raised was to show the sheer absurdity of comparing greatness in art beyond our life time in respect to 'longevity'. ie/ There's no such thing as greatest, or who is best in art. In sport, although longevity is impressive, but it can be as easily refuted when you taking on repeated record breaking as measurable to success.
To put forward the example of Michael Jackson, he has sold more records, well loved, and impact more current crop of music 'artists' than any other. Do you find him anywhere on the Most influential and greatest musicians/composer polls? Does it make him greater compared with the likes of Beethoven, Mozart, Bach etc? When in fact it was these musicians who has indirectly impacted him, and therefore to him, they are far more greater? In other words, the question itself is absurd. To Yuna, Michelle is the greatest, and that should be good enough for me. To everyone else, it doesn't really matter.
While one can academically disseminate the components of what make someone or their accomplishment great. Not at all dissimilar how we analyse the components, the records, various bits and pieces. IMHO, they demonstrate far more about the quality of the debater, rather than argument itself. That one should be open minded on the possibly that Michael Jackson can be amongst the greatest even when he just made 'thriller' at the time.
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I also notices the conflict of views from various posters are largely stemmed up from the cultural upbringing, education and social perspective that already shaped their views.
This is a stereo typical view and doesn't apply to all posters, but it would seem
Americans: Only the best and strongest can be considered as the greatest. Only the longest survivor are worthy of surpassing greatness.
Koreans, Japanese, Chinese: If you score the highest, you are the best. Die or nothing. If you disagree with me, you insult to my face.
British and Continental view: Probably more open minded due to the historical on going conflicts, where one country had been more or less been invaded at one time or another, therefore more than once, some country were an underdog. That best is not always the greatest, the strongest doesn't always mean it can defeat weakests. Greatness are considered on each of their own merits and should be celebrated regardless. Only time would be the true judge of a lasting legacy, everything else are just politicians putting forward their latest causes.