You said very well, at a one moment bitcoin was worthless bought a Pizza by paying 10000 bitcoins but now no one can even dream it. Those who are bought Pizza at that moment, i am sure that they will never forget the situation until death. However bitcoin growing fast it's one way. No one can stop him when ever he runs if we look at the bull market price chart then we can deserve it's strength. With in few months we can see one another Bull Run.