"They said they might look at selling when the value of all the bitcoin in circulation approaches the value of all gold in the world — some $7 trillion or $8 trillion compared with the $310 billion value of all bitcoin on Tuesday — given that they think bitcoin is set to replace gold as a rare commodity. But then Tyler Winklevoss questioned even that, pointing out the ways that he believes bitcoin is better than gold."
Flawed thinking. You can apply this logic to the total market cap of all cryptos, but when the smoke has cleared, the question is, how much of the cryto portfolio has been allocated to bitcoin. If superior digital currencies come along, it is very conceivable the while the asset class is worth trillions at some point, bitcoin represents zero percent of that value.