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RE: Mining Bitcoin Just Got Harder Then Ever
Seems to me like hybrid POW/POS blockchains are going to be the future. Similar to what Ethereum's Casper Hybrid FFG will be like. This adds a second layer to security and makes blocks final preventing a 51% attack.
Also, DPOS is future like Steem and EOS. I think over time as Proof of Stakes system develop, this will become the new norm. A POW work blockchain that gets mass adopted could be very secure since that would mean lots of different addresses and miners competing for the block rewards and trans fees. For example, you have a POW chain that had a 1 billion transactions a day at 1 penny trans fees, that's $20 million per day just in transaction fees to miners. You'd have many miners all over world competing.
I still dont see how DPOS is better as it is limited to just a few masternodes that are voted on. It seems like you can manipulate that pretty well as a majority of people do not vote.
It's a trade off for high scaling. 21 BP's with 150 on standby. That's very decentralized enough. The most important thing is going to be user experience which requires mass on-chain scaling. I believe EOS is launching with nearly 1 million transactions per second. I also believe dapps will need to be blockchain agnostic in the future so they can run on at several major public API chains - interoperability.