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Yes, Casper FFG will be implemented in Eth2 phase 0. Most Eth2 client teams have already implemented the Eth2 variant of FFG and all public Eth2 testnets are using it. Some recent information about Eth2 and FFG can be found in Combining GHOST and Casper. There is a long-term plan to switch to Casper CBC, however serious specification or engineering works ...


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This is called the Nothing at Stake attack. You're correct that it's much easier to build a fork. It's a problem when someone owns more than 50% of all coins (not very likely). But another issue is that in Proof of Stake nodes have nothing to loose to compute on other forks. That means in theory a node that wants to maximise its profits would always compute ...


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There are many steps in the transition that are not ironed out yet. However, there are some information available that are certainly accurate for the upcoming phases of ETH 2.0. Staking You can transition to the Beacon Chain which is Phase 0 (see this answer for all milestones). In that step there will be a deposit contract deployed on the legacy ETH 1.x ...


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{1} First hybrid Casper FFG paper: https://arxiv.org/abs/1710.09437 {2} New hybrid Casper FFG overview paper: https://arxiv.org/abs/1903.04205 {3} EIP1001 (also specifies constants): https://github.com/ethereum/EIPs/blob/master/EIPS/eip-1011.md Thank you for this interesting questions, during the creation of the answer I have learned a lot. 1. Does ...


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Metropolis is not a fork but a milestone in the Ethereum roadmap. Simplified: Proof of Concept 1-8 (ETH 0.1) were several implementations of the Ethereum protocol in 2014 and 2015. Olympic (ETH 0.9) was the last proof-of-concept testnet for Ethereum prior to the mainnet launch (2015). Frontier (ETH 1.0) was the beta phase and the launch of the Ethereum ...


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