well, since no one knows how much sands out there on this planet, how dare the experts say the numbers of bitcoin address is greater that all sands on earth (or dust over the universe )? How they come up with this conclusion?
Maybe because bitcoin addresses can created easily, even in 1 blockchain wallet for example, there are a lot of address that can generated. It is if for 1 person with any kind of wallet. If all people in this earth generated a lot of addresses it will be a ton of it. But in fact what make it unique is each address is different. That what make it amazing.