ripple has an inflated supply and lacks everything that makes a crypto - currency, it's essentially a sql database operated by a corporation. Me no rikey. This could be one of the bearish outcomes for ripple as new buyers dry up and it enters a crash cycle. On the other hand ripple partnering with banks/corporations to use the ripple network (mind you that they...
Multi Algo, i.e multiple PoW algorithms running in parallel on the same chain decentralizes hashing, avoiding mining centralization within single actors. It also makes a 51% attack considerably harder than it is on a single PoW blockchain.
The woodchipper. We won't go anywhere until the chipper has all of our coins :(