While Bitcoin doesn't share the same set of problems as fiat currency, it has its own burdens, and has proven completely ineffective as a functional money system outside of speculation and fraud. The novelty of Bitcoin is supposedly its 'immutable ledger', a phrase used so frequently in defending Bitcoin, that it has become divorced from its meaning, and divorced from the reality that solutions to distributed logging existed long before Bitcoin, and many more solutions to this problem will be developed with no regard to the blockchain.
Bitcoin itself will never replace anything -- cryptocurrencies will remain monolithic in purpose and function for a very long time. The underlying ideas to the Bitcoin protocol will be iterated on, and we'll see these ideas implemented in distributed software, but to incessantly hype Bitcoin as the singular platform for cryptocurrency is to live in a bubble.
pls buy litecoin