Bitcoin - It's A Safe BetMost people are unsure about this new technology and like any new disruptive technology seeds of fear and distrust are sowed by the incumbent players. Up to now the prudent advise is not to invest more than 5% of your portfolio, as one bitcoin may have the potential to be worth a million dollars or it can go to ZERO. Over the two years that I have been immersed in this technology, I have come to the conclusion that the chance of it going to zero is nil.
http://bitcoinandtheblockchain.blogspot.co.nz/2015/11/bitcoin-its-safe-bet.html