I believe Orbitcoin (ORB) the future space reserve currency
Of course you do...
It works a little like a Pyramid scheme, yet one that can never fail or be a scam because you alone control your funds, and it works on a totally decentralised open source peer to peer system.
This is simple maths but effective, so after you get your coins tell ten friends to do the same and you can all retire early together.
...preying on retirees who have a fixed (and declining) income is so very ethical.