With due respect, Bitcoin is not create at the first place to be an investment. Always remember that. In its whitepaper, Satoshi Nakamoto created it as medium of peer to peer to eliminate third party involvement especially with financial institutions. Created with coincidence after the 2008 economy breakdown and distress in USA because of broken financial system which resulted to millions losing of jobs, closure of business and lost of money by a lot of investors too. Bitcoin was maybe created also as a hedge of the broken FIAT system created by the government which was finally exposed during that time in 2008 which a lot of hedge fund managers like Paul Tudor invests in it too and a lot of institutions are finally eyeing with Bitcoin example to the newest news about Paypal integrating cryptocurrency which is a very very big news. Call that ponzi. Peace!