pipe dream. other crypto currencies would pop up, which would bring down BTC value.
blockchain confirmations take too long for BTC to be ubiquitous.
A lot of you underestimate the size of the global economy. There are hundreds of trillions of dollars which can flow into Bitcoin or the others like Bitshares, Mastercoin or Colored Coin.
1 million dollars is not as big of a deal as you all seem to think. I think $500,000 is realistic and even $100,000, but 1 million is also realistic and its just a matter of how long it will take to reach it.