In other words, there might be people who would buy ETH, but never BTC and the other way around.
In other words, there might be people who would buy ETH, but never BTC and the other way around.
So the fact that the people like you say exists does not prevent the existence of the people that I am talking about.
And if the secure, easy to use, non-wasteful, programmable and distributed ledger problem is solved once then ALL coins after that become the same. In that environment "people who would buy ETH, but never BTC" will not make any sense.
If only British pounds existed and suddenly the Australian dollar was invented, you could suddenly do business in another currency.
Just like Swiss francs and Euros and US dollars are different things and will never be measured against or valued in terms of each other.
Q.E.D.