Vitalik Buterin, su-kreator Ethereuma, na Twitteru je raščlanio Deconomy predavanje o Bitcoinu pod nazivom “Bitcoin, Controversy over Principle”.
Evo što je imao za reći (Tweetove koji nedostaju u donjoj listi pogledajte na Twitteru ili [ovdje][tw2]).
1. It's interesting how much times have changed by 2018; even @Excellion (Blockstream CSO)'s presentation explicitly makes concessions to the non-maximalist multi-blockchain reality (“lightning compatible with Litecoin”, “Simplicity will be usable on Bitcoin+ other blockchains”)
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
Blockstream, tvrtka koja je patentirala razne koncepte koji su sada u Bitcoin tehnologiji i koja gura Lightning Network kao metodu skaliranja Bitcoina, prihvatila je da Bitcoin više nije jedini blockchain koji ima smisla (tzv. maksimalistički pristup). U predavanju je, kaže Vitalik, očito da su shvatili da će budućnost biti građena na ko-egzistenciji i kolaboraciji više blockchaina.
2. The whole “collectibles, then gold, then fiat, then bitcoin” narrative is only one way of understanding the history of money, and in many significant ways an incorrect way. See: David Graeber's “Debt, The First 5000 Years”
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
3. “Money always evolves in the following four stages, collectible -> SoV -> MoE -> UoA” – no, no, no! Seriously, read David Graeber's Debt. Amazon link for the lazy: https://t.co/UgfNZ9L8ME
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
Sljedeća dva tweeta spominju prema Vitaliku krivi način gledanja na povijest novca. Predavači tvrde da je povijest novca oduvijek redom bila kolekcionarstvo, sredstvo spremanja vrijednosti, medij razmjene vrijednosti, i jedinica računa (UoA). Vitalik tvrdi da je to netočno, navodeći knjigu Debt kao izvor točnih informacija.
4. “Monetary policy determined by user consensus” …. “set emission rate and provably finite supply” – isn't that a contradiction? That said, good to see the emphasis on social agreement rather than “backed by math”; I think that's philosophically the right step forward.
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
Na predavanju se tvrdi da je “monetarna politika bitcoina određena korisničkim konsenzusom” za što Vitalik tvrdi da je kontradiktorno tvrdnji koja je slijedila, da bitcoin ima: “fiksnu razinu emisije i dokazivo konačni broj”. Unatoč kontradikciji, Vitalik podržava bilo kakvo refokusiranje na korisničke odluke umjesto čiste matematičke dokazivosti jer smatra da gradimo novi financijski svijet za ljude, ne za strojeve. O lažnoj konačnosti bitcoina pisali smo i prije, a pokrili smo i mogućnost rudara da jednostavno izmijene konačni broj bitcoina, njihovu emisiju, i druga svojstva u ovom članku.
5. “Why Bitcoin is Better than Gold” – I actually agree Bitcoin is better than gold as an SoV both individually and socially; I harp on bitcoin PoW mining wrecking the environment a lot, but gold is worse. https://t.co/3GNPECdMYo
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
Vitalik nadalje tvrdi da je Bitcoin bolje spremište vrijednosti od zlata, s čime se samo djelomično slažemo. Što se rudarenja tiče, trenutno je zlato puno gore, istina. No kao spremište vrijednosti, zlato opstaje u offline svijetu i nema načina da ga tvrtke poput Blockstreama proglase bezvrijednim. Bitcoin je dokazano sabotiran iznutra, i funkcionalno beskoristan od kada postoji RBF (replace by fee – metoda kojom slanje bitcoina bez potvrde transakcija postaje nemoguće, i time ga dućani više ne mogu koristiti).
Moramo biti svjesni da će u trenu kolapsa globalne ekonomije i jedno i drugo biti bezvrijedno. Što se trenutnog spremanja vrijednosti tiče, zlato se ipak pokazalo boljim onim ljudima koji su dizali hipoteke kada je bitcoin bio na $19000 samo da ne bi propustili val.
6. Why the emphasis on the ability to move $400m quickly? I personally am more interested in the ability to move $40 quickly; economic freedom for the common people and all that.
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
7. “Bitcoin is divisible and spendable”…. umm, I don't think it's possible to spend less than ~10000 satoshis. Sure, you can use lightning channels, but entering a channel itself costs that amount, so you can't collect a payment for the first time if it's smaller
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
Vitalik se u prvom od sljedeća dva tweeta čudi zašto se naglasak stavlja na prenosivost $400 milijuna dolara, dok je realno bitnije da oni koji nemaju mogućonst prijenosa novca mogu prenijeti sitnije količine. S time se u potpunosti slažemo – uvijek će postojati načini za prijenost velikih količina novca. Oni koji ga imaju, naći će načina. Oni koji nemaju načina prijenosa novca su upravo ti kojima trebamo donijeti decentralizirani financijski sustav.
U sljedećem tweetu Vitalik niječe tvrdnju da je Bitcoin dijeljiv i trošiv na usluge i dobra. Smatra da nije moguće potrošiti ispod 10000 satoshija zbog troška transakcija, i da ukoliko se i koristi dokazano slomljena ideja Lightning Networka opet minimalni trošak biva barem 10000 satoshija koji su potrebni za otvaranje LN kanala. Lightning network ćemo dodatno objasniti u dubinskoj analizi uskoro, no ukratko, koncept uključuje otvaranje “kanala” s određenim centralnim bitcoin bankama koje prosljeđuju novac kao posrednici. Drugim riječima, radi se o novom bankovnom sustavu kojim misle ubrzati i pojeftiniti Bitcoin ali žrtvujući privatnost.
Sljedeći komentari nisu sadržajno bitni sve do kad Roger Ver, glasnogovornik Bitcoin Cash blockchaina, nije počeo svoju prezentaciju.
13. That said, it's mandatory to note that the economic freedom narrative does have caveats. Roger showed the growth of Hong Kong from 1950 to 2010 (super impressive) compared to Havana (lol).
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
14. But Shenzhen is at this point as physically impressive as HK, and mainland China's level of economic freedom is definitely considerably less than HK.
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
15. Though the general “more economic freedom = good” idea is certainly one that I subscribe to. That said, there is a difference between the kind of economic freedom that is the difference between Cuba and HK, and the kind that bitcoin/crypto enables…
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
Roger je pokazao rast Hong Konga i Havane u zadnjih 60 godina, naglašavajući ekonomsku slobodu. Vitalik priznaje bitnost iste, no napominje da korelacija nije bitno i kauzacija – Shenzen, ili kontinentalni dio Kine, je jednako toliko narastao kao i Hong Kong, a njihova ekonomska sloboda je daleko manja.
18. “This will result in fewer users … less financial privacy … less censorship resistance”. The financial privacy bit may actually be true; I heard from third-party sources that bitcoin tumblers were the first type of transaction to stop taking place as fees started going up
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
20. The thing I dislike about the presentation is that it doesn't actually engage any of the arguments in favor of the small block position. I would really want to see some deeper discourse that actually gets into pros and cons of both sides and acknowledges that they exist
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
Roger je u ostatku svog predavanja pričao protiv malih blokova (protiv originalnog Bitcoin lanca koji je zadržao tu limitaciju), no nije dao konkretne argumente, što s Vitalikom kao matematičarom i tehničarom ne leži. No, Vitalik potvrđuje Rogerovu tvrdnju da privatnost pati kod malih blokova. Manji blokovi uzrokuju veće transakcijske troškove, što je nepogodno za tumblere – servise preko kojih se skriva trag bitcoinima u nečijem vlasništvu tako da ih se pomiješa s ostalima i vrati na različite anonimne adrese koje nisu nikako povezane s izvornima.
Nakon Rogera, na pozornicu stupa Craig Wright, čovjek koji je u više navrata tvrdio da je on Satoshi Nakamoto, kreator Bitcoina, no nikada to nije dokazao. Vitalik ne skriva svoje dojmove o njemu, optuživši ga za laži i maskiranje pravih problema iza termina koji su osmišljeni da zbune.
21. Craig Wright begins: “We're going to talk about the lies”
“Samson said that money was used first in barter and as a store of value – BULLSHIT!”
Then proceeds to brag about how many university degrees he has….. eh, at least he read Graeber.
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
23. Shows a slide containing 6 diagrams of network topologies, and just claims that Bitcoin is less decentralized because “it has more centrality”, and does not elaborate further.
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
24. “You don't actually do anything as a node, unless it's a full node, which is a miner, which is now ASICs”.
“Bitcoin works because of these squiggly lines called math”, pointing to more non-sequiturs.
Double facepalm….
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
…
34. “If you solve lightning, you also solve the discrete log problem”. My bulls*** meter is spinning so fast that figuring out the next time it will hit zero is a hard discrete log problem.
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
Nakon rastavljanja nekih Craigovih argumenata na površan ali agresivan način (za koji se nadamo vidjeti puni članak na Vitalikovom blogu), počinje panel između Rogera Vera, Jeffa Paika, osnivača Finectora, i Samsona Mowa, CSO-a Blockstreama.
45. “It's easier to migrate from bitcoin core to altcoins than to migrate from bitcoin core to lightning” – this is actually a very interesting point: lightning only benefits from bitcoin's currency network effect, NOT tech/development network effect.
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
Vrlo bitan tweet – lakše je preći s Bitcoina na neki altcoin, nego s Bitcoina na Lightning Network. Kao što smo već spomenuli, prelazak na LN zahtijeva korištenje posebnog softvera, plaćanje za otvaranje kanala, i plaćanje za zatvaranje kanala. Ako otvorite platni kanal s nekime – makar i bitcoin bankom kakvu Blockstream želi kreirati – da biste svoj Bitcoin izvukli i koristili ga drugdje morate platiti još jednu transakciju. Daleko je lakše preko neke usluge tipa Shapeshift ili Coinvendor.io nabaviti altcoin, koristiti ga za jeftinije i brže plaćanje, i prebaciti altcoin u Bitcoin i u fiat po potrebi.
46. Samson: “I don't think block size limits impede usage. If you go to a restaurant and it's full, you wait”
This I think is definitely a bad argument; I actually go to restaurants often and usually when I come to one and it's full, I go to a different restaurant.
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
47. Samson: “If you're accepting payments in altcoins, there's very little liquidity”
IMO not true since ~2015 for the top ~10-50 coins. Just use the altcoins as a payment channel; when your balance gets to ~$100 convert to bitcoin through shapeshift and sell to fiat from there
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
Nadalje, Samson tvrdi da puni blokovi (jer su mali pa u njih stane manje transakcija) ne smetaju korištenju BTCa, usporedivši to s restoranom i redom čekanja – ako je restoran pun, počekati će da se oslobodi mjesto. Vitalik tvrdi da je upravo suprotno istina – većina ljudi jednostavno ode u drugi restoran. Samson tvrdi i da u altcoinovima (drugim restoranima) nema likvidnosti, no Vitalik to pobija tvrdnjom da prvih 50-ak altcoinova na Coinmarketcapu ima i više nego dovoljno likvidnosti od 2015.
50. I agree with my post on soft fork coercion: https://t.co/oQE9xk8SUf
That said, I am more on the core side on the replace-by-fee issue. Relying on miner altruism is dangerous. That said, I think BCH should just hard fork to cut block times down to ~15 seconds and adopt GHOST.
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
Ovdje Vitalik kaže nešto neočekivano – predlaže da Bitcoin Cash uvede smanjenje vremena rudarenja blokova na 15 sekundi i ugradi GHOST – protokol kojim Ethereum rješava problem istovremenog uspješnog rudarenja više blokova odjednom na više rudara. Kada do toga dođe, rudarima čiji blokovi nisu uključeni u finalni blockchain daje se “Uncle” ili utješna nagrada malo manja od pune block nagrade.
58. Roger's argument: the core devs diverted the project and shifted the vision in ways that many of its constituents disagree with (“store of value”) and belittled and censored them, so of course people are upset.
I personally do agree that the vision was diverted.
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
60. Samson: “Now that you have your own coin and BCH people have their own chain to promote, there really doesn't need to be any animosity”
Agree fully; though it does seem we are still far away from that.
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
Vitalik potvrđuje svoj stav da je Blockstream i tim plaćenika koji trenutno razvijaju Bitcoin softver i cenzuriraju diskusije oko istog na Redditu i drugim platformama aktivno oteo Bitcoin projekt i preusmjerio originalnu viziju u nešto drugo samo njima korisno. Lightning Network u svojoj trenutnoj inkarnaciji zahtijeva da originalni sloj Bitcoina bude apsolutno slomljen, inače ga nitko neće koristiti. Istovremeno, Vitalik naglašava da nema potrebe za svetim ratom Bitcoina i Bitcoin Casha – svaki lanac je “svoj” i svaki se može razviti u svom smjeru. Problem je trenutno u brendu i imenu. Oba “Bitcoina” žele prijestolje i naziv “Bitcoin”, pa je implicitna dužnost onog drugog da optuži napadača za prijevaru.
Završivši svoje tweetanje uživo, Vitalik je potvrdio da je Craig Wright luđak.
62. So I do think both sides need to improve their discourse.
But Craig Wright is crazy.
Fin.
— Vitalik “Not giving away ETH” Buterin (@VitalikButerin) April 3, 2018
