with the total supply of Dogecoin, I am sure it will be difficult for the price of Dogecoin to increase by $1, moreover Dogecoin was made just to joke, so in my opinion it is not feasible for the price of Dogecoin to increase by $1 and I personally don't believe that the price of Dogecoin will increase by $1 in the future.
Telling that DOGE can reach $1 is just a trick they use to get people into crypto. If it can reach the $0.20 everyone should be happy. Even before that price whales will dump the price already.