I don't think that bitcoin can make dollar dissapear, also dollar is trusted and very stable currency, bitcoin need many years to reach this greatnes as dollar did.
bitcoin is just an alternative to fiat currencies, and that's it. it will never come even close to 5% of the total market cap of the us dollar. and there is no need for this to happen as bitcoin has given us the opportunity to choose for something that allows us to transact and hold money outside the banking system. that's all we need, and the best thing of all.... it's here and ready to be used.
I think for now, it is not close to 5% of the total market cap of the us dollar. Still I am positive that the users of bitcoins will significantly increase in the future, as long as we remain supportive and bitcoins will be stable we can see some actions in the future from big companies and people will be adopting too.
at this point it's not even close to 1% of the market cap of the us dollar. that 5% was just an example. yes, of course the adoption rate by people will go up each year, but it's not enough to get the price to climb up to insanely high price levels as some people like to believe.
