I think you are dreaming 
For a shitcoin like doge to become that much inflation should reach %100000 or more.
That is very clear but Dogecoin is not Shitcoin because its age in cryptocurrency is very long and for such a high price I agree that it is an illogical dream For a shitcoin like doge to become that much inflation should reach %100000 or more.
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So if doge reach 20.000$ we would have some huge problems.
Not only a problem, but there are also surprises with other Altcoins and Bitcoin too, because if Dogecoin could be at that price, Bitcoin would be 100x that price.