[acdha]

The other thing I see is that only existing holders have much loyalty to that particular blockchain. Nobody else has a vested interest in using their funds to re-inflate the net worth of people who bought Bitcoin before them, and it’s easy to create a new blockchain where you’re not buying at a disadvantage.

[sph]

https://en.wikipedia.org/wiki/First-mover_advantage

Sure, you can create a new blockchain, but you probably won't overtake the first and most popular, however good your tech is. Also, your comment suggests, as it is often the case, that new blockchains are created not because they are better than all other cryptocurrencies, but rather as a pump-and-dump scheme, and that's the primary reason the whole field has such a terrible reputation.

In any case, first-mover advantage is another reason why it's highly likely Bitcoin will remain the cryptocurrency with the largest market cap.

[acdha]

First mover advantage still requires some reason to stick, especially when it costs more. Almost nobody _needs_ Bitcoin – most people don’t use it at all so they have no reason to pay more for it and there’s almost no situation where that would be the only option. The only reason to buy in is hoping that there will be more demand in the future, and that can evaporate quickly as we’ve seen because a fiat currency like Bitcoin is valued on the strength of its backers and it doesn’t have anything like a country or large industry driving demand.