As a n0ob with cryptocurrencies, I'm convinced I'll make some errors and I'm sure there are things that I've misunderstood; Feel free to correct my if I mess things up.
From what I've seen, Bitcoin is without a doubt the dominant cryptocurrency out there. Bitcoin is also fairly slow and resource hungry. Bitcoin also has a cap at 21MBTC.
Could it be that Bitcoin will become the equivalent of digital gold?
Everyone recognizes gold as very valuable but it's not used for everyday transactions.
I've seen people describing LiteCoin and Etherium as digital "silver" if BTC is the digital gold.
But silver isn't used in everyday transactions either.
Is there a cryptocurrency out there that has what it takes to become the "digital dollar"? A cryptocurrency suitable for everyday transactions...
What makes it/them suitable?
IMHO the concept is a bit awkward.
The Dollar (and any other Fiat currency out there) is constantly being diluted with freshly printed Fiat, and that is the exact opposite of what we want from a cryptocurrency.
But if a currency only has a fixed amount of units, it'll be in a perpetual deflationary state, that's not necessarily a positive thing either.