@Betwrong. In your fictional example no one wants to hold the other coin. That is not what occurs in our world, however.
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If you want to say that there are people who don't mind holding other than Bitcoin cryptos, of course you are right in that, but I'm talking about the vast majority of business people. The reality is that the vast majority wouldn't accept any crypto as payment for their goods or services, and those of them who would, surely would prioritize Bitcoin over all other cryptos. I'm not talking about crypto oriented folks, I'm talking about all people in general, because I think we should pay more attention to them if we want wider adoption.