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					Originally Posted by barrysloate   I think it would be an excellent idea, except how accurately do any of us know how many examples of any card exist? I guess we have a pretty good idea, but even a card like a T206 Wagner has no precise population. At least a rarity scale quantifies a subjective term. | 
	
 In other words, it doesn't measure absolute rarity, but relative rarity.   We can say accurately that a T207 common is rarer then a T206 common, even without knowing exact populations of each.