I don't understand how someone can talk about making everyday purchases with BTC without addressing the transaction fees and confirmation times. Doesn't it currently cost several dollars to spend a dollar? Is there some reason to think that in the far future confirmation times and transaction fees will trend towards zero?
Bitcoin is not the only cryptocurrency, and not all cryptocurrencies are based on a blockchain data-structure. There are other currencies which are not-inflationary, trustless and decentralized, and many more currencies with various levels of those properties, some are more centralized and require trust in a few in various ways, and some are decentralized trust-less but still inflationary. There is even cryptocurrenc…
It's a more long term view of the impact of cryptocurrencies concerning government issued currencies.