Elsewhere here is "Buy Bitcoins Without Risk of Losing Money: A Guide to Responsible Investing." I know, I laughed too, but it's actually a straightforward and well-known strategy, which is, if you have $10,000 to invest for five years, you spend some of it buying a risk-free security (classically, a Treasury Strip) that matures at $10,000 in five years, and then -- because that Strip costs something like $8,750 today -- you spend the rest buying the risky thing that you really want to buy. (Or, more classically, at-the-money call options on the risky thing.) If you don't think too hard about it -- about time value of money or opportunity cost or liquidity risk or the actual slope of the payoff graph -- then this sort of looks like getting the upside of Bitcoin without the risk of losing money. I am not saying it's a good idea -- this is not investment advice -- but I am saying that it's a good pitch.Rest here:
https://www.bloomberg.com/view/articles/2018-03-22/when-margin-loans-go-wrong