I worked in the City of London for 41 years.
I remain a Trustee of a Defined Benefit pension Scheme with £100 million of funds invested.
The Trustee work involves an understanding of pensions law, involved investment knowledge, and much other legislative involvement such as the Pensions Regulator.
So, I have a background in finance.
Despite this, I cannot get my head round Bitcoin, because I always come back to the point that it appears to be a solution to a problem that didn't really exist.
I have always had a rule that you shouldn't invest in something you do not understand.
Wiki has some interesting comments:
Various journalists, economists, and the central bank of Estonia have voiced concerns that bitcoin is a Ponzi scheme. In 2013, Eric Posner, a law professor at the University of Chicago, stated that "a real Ponzi scheme takes fraud; bitcoin, by contrast, seems more like a collective delusion." In 2014 reports by both the World Bank and the Swiss Federal Council examined the concerns and came to the conclusion that bitcoin is not a Ponzi scheme. In July 2017, billionaire Howard Marks referred to bitcoin as a pyramid scheme.
On 12 September 2017, Jamie Dimon, CEO of JP Morgan Chase, called bitcoin a "fraud" and said he would fire anyone in his firm caught trading it. Zero Hedge claimed that the same day Dimon made his statement, JP Morgan also purchased a large amount of bitcoins for its clients. On 13 September 2017, Dimon followed up and compared bitcoin to a bubble, saying it was only useful for drug dealers and countries like North Korea. On 22 September 2017, hedge fund Blockswater subsequently accused JP Morgan of market manipulation and filed a market abuse complaint with Swedish Financial Supervisory Authority.
Until history proves otherwise, I am going with the 'collective delusion' view.
Edite