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PoS will turn into a stealth PoW if it is possible in any way to influence the outcome with money. The history of all economic activity shows people being willing to spend $49.99 to make $50. Though spending $49.99 of bank balance probably beats $49.99 of carbon.

Have they got a proof of concept as yet, or is this all still vaporware that nobody on this thread should be talking about in the present tense?

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Yeah, they have a proof of concept code up on their github, only started on it in the past few weeks though. Up till now it's all been math and research.

The first casper PoC was in 2015, and PoC2 was in early 2016.[1] However, there was a pivot from the early "consensus-by-bet" to the current version, which is based on "prepare and commit" messages. I think the current one is PoC4. [2,3]

1. https://blog.ethereum.org/2016/03/05/serenity-poc2/ 2. https://github.com/ethereum/casper 3. https://github.com/ethereum/pyethereum/pull/791

Thanks, that's a lot more than I thought.

Still vaporware.

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