This is a good question. It already has been 5 years, since this first post has been made. THe technology is still catching up but we don't know whther Bitcoin can replace dollar or not yet.
Let me disagree with you. Bitcoin or any other crypto cannot ever replace dollar and fiat money. No one country will agree to destroy its banks’ system and forget about USD, Euro, Pounds, etc. Fiat money and virtual currency however can coexist.
I agree, but this is why they are discussing it in the context of New World Order and one global country.
I am not buying this way of thinking as a whole, but certain aspects (the transaction ledger that is public, so governments have visibility and transparency on the citizen's actions) I must admit are disturbing. Of course the level of anonimity in bitcoin would not allow that visibility currently, but the very idea is disturbing nonetheless.