Charles Hoskinson posts a ‘rebuttal’ to Vitalik Buterin, Ethereum co-founder calls it ‘pathetic’ 19185
Pinaz Kazi
Aug 10, 2018 at 3:19 PM

Not just the cryptos, the crypto founders are fighting too to win the crypto race. A few days back, crypto titans – Ethereum co-founder Vitalik Buterin and Cardano founder Charles Hoskinson got into fight over their competing technologies. The debate started on Reddit and continued on Twitter.

The IOHK head, Hoskinson posted a video a few days back where he stated about the incident saying, “Reddit is not the proper place to have a debate.” On August 9, Hoskinson shared a ‘rebuttal’ blog post on Twitter tagging Vitalik Buterin. Buterin was quick to respond to the argument, and called it ‘pathetic’.

See also: Vitalik Buterin, Binance CEO Zhao bat for decentralized exchanges

Ouroboros Vs. Casper

The debate between the crypto titans was based on the benefits and weaknesses of Cardano’s consensus algorithm Ouroboros and Ethereum’s Casper. Hoskinson’s blog post was also related to it. The post entitled “How Does Casper Compare with Ouroboros,” referred to some of the major differences between Ouroboros and Casper written by IOHK chief scientist Aggelos Kiayias.

The article supports Hoskinson’s argument hinting Cardano’s Ouroboros version of Proof-of-Stake is better than Casper.According to the post Hoskinson shared, proof-of-stake ledger protocol needs to have at least these two major attributes – persistence and liveliness. “The first ensures that the ledger is final and immutable. The second ensures that transactions broadcasted by honest parties are eventually included in the (immutable) ledger,” the post mentioned. Persistence is what makes transactions permanent, and livelieness is what makes sure that every node on the network gets the same information and remains synchronized.

Vitalik Buterin’s response

Buterin claims that the article completely misses important protocol properties. He even takes out out some of the major points from the article and explains,“ ‘Casper requires a ⅔-fraction of deposited stake to be controlled by honest parties. Ouroboros is proven to achieve persistence and liveness under the assumption of honest majority’ This completely misses (i) *incentive* properties, (ii) network synchrony assumptions,” Buterin wrote.

See also: Charles Hoskinson drops message for Vitalik Buterin amidst upcoming Cardano updates

“Casper makes no explicit claims about the network setting it operates in. This is just a lie. Eg. page 4 of the Casper FFG paper: "Plausible liveness means that, regardless of any previous events (e.g., slashing events, ****delayed blocks****, censorship attacks, etc.)," he added. Buterin insisted, “The incentive properties of finality, enabled by accountability, are also crucial.” Further added, “Once a Casper block is finalized, you need 1/3 to *sacrifice their deposits* to reinstate it. With chain-based algos, you don’t have this property.”

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