Billionaire bitcoin skeptic Howard Marks admits it could be legit currency, but is still a 'speculative bubble'

Oaktree Capital's Howard Marks says he will not invest in bitcoin even though it can be used as a legitimate form of currency.
Read more: https://www.cnbc.com/2017/09/08/billionaire-marks-still-says-bitcoin-is-a-speculative-bubble.html?source=Snapzu