My take on it is let’s say me and few mates say 20 all have 10 million quid each and then pool it to make 200 million quid.
We then make up a currency unit and then put it out there as a value and invite others to invest.
As more investors join it the value increases and when enough is received me and my mates bail out with our new ‘values’ of maybe 5 times our ten million initial investment and then watch the fund value reduce overnight.
We sail off with our money and revel at how thick and stupid our investors were !
In short it’s a very risky investment and I certainly wouldn’t try it , stick it in a pension plan is best advice.