one of millioner bet on digital currency is now worth billion 
just million converted into billion
just million converted into billion
it is not crazy and it is not a bet.
it is crazy and a bet only if you don't understand bitcoin and never saw the potential in it. otherwise for those of us who saw the potential instead of reading the social media trolling attacks against bitcoin, you would have never thought of it as a bet and you would have invested even a small amount of money (like we did) and made a very good profit from it.
this is actually one of the reasons why bitcoin is rising with ultrasonic speed right now. it is because all those who were afraid and were staying away are not running in! and they will lose money pretty soon from the first
You can make money out of anything if you know how speculation works. However, BTC price is driven up by greedy people: affirmation, contagion, repetition of cycle and lost of prestige as greediness is no longer sustainable. Credulity plays the main role and you'll regret when another big correction comes. The first signs of uncertainty among traders are indicative.