比特幣資深開發者 Jimmy Song 昨(3)日發推抨擊區塊鏈 PoS 制,稱其沒有解決拜占庭將軍問題,引來以太坊創辦人 Vitalik 回應把數學、經濟、道德哲學混為一談。有趣的是兩者貼文都分別引來了以太坊擁護者以及比特幣擁護者的攻擊。
(前情提要: Jimmy Song:對於大多數投資者而言,投資比特幣以外的競爭幣只會增加風險)
(背景補充:Vitalik父子對話《財富》 : 很多人對以太坊轉向 PoS 過度消極)
比特幣資深開發者、比特幣暢銷書作家 Jimmy Song 昨(3)日發推抨擊區塊鏈權益證明制(Proof of Stake,PoS),提及 2019 年的經典 PoS 論文觀點,並沒有解決長期以來的拜占庭將軍問題。
權益證明(PoS)並不能解決拜占庭將軍問題,它不提供去中心化共識,如果你不了解這則貼文那麼你完全沒資格對權益證明提出任何主張...拿這篇論文作主張的人顯然不懂拜占庭容錯。
-Jimmy Song
Proof-of-stake does not solve the Byzantine General's Problem. Therefore, it does not provide decentralized consensus.
If you didn't understand this tweet, then you are completely unqualified to make any claims about proof-of-stake.
— Jimmy Song (송재준) (@jimmysong) July 2, 2022
Song 的貼文引來了大量以太坊擁護者的謾罵,部分網友反稱中本聰共識反而無法提供更多的額外保證,而發展至今的 LMD-GHOST + Casper FFG 等 PoS 理論已經非常堅實,更甚至有人稱 Song 將機制與共識兩者搞混了。
I understood the tweet and you are completely unqualified to make any claims about proof-of-stake.
LMD-GHOST + Casper FFG absolutely gets you both safety and liveness, plus additional finality guarantees that Nakamoto consensus can't provide
— foobar (@0xfoobar) July 3, 2022
PoS is not a consensus mechanism. PoW isn’t a consensus mechanism either. BFT or Nakamoto algorithms are consensus mechanisms. If you don’t know the difference, then you are completely unqualified to talk about either. https://t.co/cgztx6S5Yf
— Adrian Brink (@adrian_brink) July 3, 2022
V神加入戰局
以太坊創辦人 Vitalik 昨(3)日下午也回覆此貼文,提醒 Song 將許多東西混為一談,只為辯論 A 與 B,這在辯論哲學上是錯誤行為:
人們透過基於涉及數學、經濟學、道德哲學的深度爭論,來辯論 A vs B 這樣的傳統已經很久,但你以涉及定義下的單方向技術問題,説(相比A)B是愚蠢的,這方面你可能錯了。
-Vitalik
An older example of vaguely this kind of bad philosophy:https://t.co/09yWBOn9k8
— vitalik.eth (@VitalikButerin) July 3, 2022
雖然 V 神呼籲在該議題上要進行有效、理性的辯論,但 V 神的呼籲卻引來更多比特幣擁護者的攻擊,部分網友稱 ETH 轉向 POS 是不明智的;也有人稱由於 POS 節點與礦工是同一角色,因此以太坊明顯比比特幣來的不安全,而這些言論都引來了來自以太坊的陣營的辯護。
在面臨以太坊即將邁入 PoS 階段之際,可以說以太坊的 PoS 可行性爭論正在不斷地被放大,基於支持 PoW 的比特幣擁護者以及支持 PoS 的以太坊擁護者的爭論,或許目前還看不到停止的一天。
The way I see it, the first implementation of PoW via #BTC worked perfectly since inception and is the most resilient network we have.
Maybe a decentralized computer needs PoS, but I am not convinced ETH moving to PoS is the smartest move right now.
— Duo Nine | YCC (@DU09BTC) July 3, 2022
If a Government want to attack ETH, it could print s much money they want, to buy millions of ETH, and controls the blocks. Plus, if ETH's validators decided to change ETH, nodes will have nothing to say, as miners are the validators at the same time.
— Zezo Duarte (@DuarteZezo) July 3, 2022
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