Just think about 15 years ago there wasn't even normal internet, we connect through dial-ups for 56k. 15 years is a very long time considering how fast technology changes. Bitcoin is the new form of money so it might not replace but it become a very good alternative to dollar by masses soon.
There is no way to believe bitcoin could replace a giant fiat currency dollar.But I could agree with your opinion about bitcoin possible to be a good alternative for dollar.
Correct there is no replacing something. Just a better alternative for regular payments.
The moment fiat collapse it will mean the financial markets will collapse.
There needs a replacement only if something doesn't work properly. Now dollar is greatly accepted as well there is no such flaw to replace with some other currency. At any situation dollar can't be replaced.
Yeah, dollar is very powerful currency since the past, and it will continue to be powerful in future too, as it is widely used and widely accepted as compared to bitcoins.
Not to mention they can print it out of thin air which is what we cal the Quantitative Easing. In bitcoin, they need proof-of-work, in USD there's none
