You could just buy some (or one) of the currencies backing Facebook's Monopoly Money. A basket of major currencies is, purely logical, less risky than the same

You could just buy some (or one) of the currencies backing Facebook's Monopoly Money. A basket of major currencies is, purely logical, less risky than the same basket plus a layer of Facebook crypto-voodoo. Considering some rather beleaguered tech company's fancy new crypto-whatever to be more stable than currencies that have decades of rather benign market histories does not strike me as rational.