| > PoS still doesn't exist in the real world, as far as I know. * BitShares and Steemit both use it, and I believe the forthcoming EOS network will as well. See https://bitshares.org/technology/delegated-proof-of-stake-co... * Ethereum has successfully tested a new hybrid PoW/PoS system and is rolling it out on the main network soon. Links in this article: https://www.coindesk.com/ethereums-big-switch-the-new-roadma... * PoS was just an example - there are a range of consensus algorithms that are not proof of work, which was the very first one. Ripple is a "real world" blockchain that does not use proof of work: https://ripple.com/build/xrp-ledger-consensus-process/ * Here's a few other consensus algorithms: https://www.coindesk.com/short-guide-blockchain-consensus-pr... > because if you make a single mistake in the code and lose all your money, there will be - by design - literally no one to help you. Actually there are, by design, roll-back mechanisms that can be deployed if the majority of the network agrees to carry it out. I believe the current controversy in the Bitcoin network is partially over the removal of such a mechanism. Various other blockchains and blockchain-like networks have correction mechanisms. Also note, its not always about storing money - thats just one use. |