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					Originally posted by  Dream
					 
				 
				But are they going to know that the song has been #1 for 10 weeks on the Billboard Hot 100? Nope. They're just going to think, "damn that song is everywhere!" And they can think that about a song that is not top 10 or even top 20. 
			
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 Right, but the point is that the charts serve as a reflection and measurement of that popularity. 
It doesn't matter that the public is unaware of a song's chart stats any more than the public's ignorance of a retailer's internal sales data has bearing on that retailer's industry ranking.