What types of Ethereum transactions are there? What does the smart contract execution process look like? Is there an advantage to over-estimating gas in Ethereum? These questions are from the seventh session of MOOC 11, which took place on March 15th 2019. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop RELATED: The Lion and the Shark: Divergent Evolution in Cryptocurrency - https://youtu.be/d0x6CtD8iq4 Investing in Education instead of Speculation - https://youtu.be/6uXAbJQoZlE Ethereum, ICOs, and Rocket Science - https://youtu.be/OWI5-AVndgk Slush17 Panel: Farewell to Centralised Data - https://youtu.be/ul0aGzF-v5c Blockchain vs. Bullshit: Thoughts On The Future of Money - https://youtu.be/SMEOKDVXlUo "Blockchain all the things" - https://youtu.be/YxyP5AH-w00 Why I'm writing 'Mastering Ethereum' - https://youtu.be/So6WERp7vLY What is Metropolis? - https://youtu.be/nmGu2mCpm90 Smart contract platforms - https://youtu.be/XU8Bc5oxneE Smart contracts, sidechains, and the Lightning Network - https://youtu.be/wfxticQHvaw Impact of smart contracts on law and accounting - https://youtu.be/K-TRzuPwJCc How do smart contracts work? - https://youtu.be/DyAjgkwwgyI The legality of smart contracts - https://youtu.be/eKfnmxSmVF0 Smart contracts and law ambiguity - https://youtu.be/V4VVnWY4lIM Scaling decentralized organisation - https://youtu.be/cuy03un7gfU Governance scalability and asymmetric power - https://youtu.be/DUZ5nhW3smw Governance and setting bad precedent - https://youtu.be/xjoTeG8D3CE What is an archival node? - https://youtu.be/blyAg4mNS60 Gas and resource allocation - https://youtu.be/HwUJIGlHFes Intrinsic vs. extrinsic assets - https://youtu.be/KDtfFNZy9xg Altcoins and specialisation - https://youtu.be/b_Yhr8h6xnA Ether, ICOs, and securities - https://youtu.be/guBNLSsnAiA Unstoppable code - https://youtu.be/AQx3E3F8Kz4 Airdrop coins and privacy implications - https://youtu.be/JHRnqJJ0rhc Initial coin offerings (ICOs) - https://youtu.be/Q5R8KuxV4A0 The token ICO explosion - https://youtu.be/vdaW8NtJXuQ 'Coin' and 'token' terminology - https://youtu.be/WjWkttUkm58 ICOs and responsible investment - https://youtu.be/C8UdbvrWyvg ICOs and financial regulation - https://youtu.be/Plu_WX3Gs8E ICOs, disruption, and self-regulation - https://youtu.be/yfjgcI8xX3A Scams, gambling, and regulation - https://youtu.be/fTI88YrN1UE ICOs and pyramid schemes - https://youtu.be/8HYWWP1QU7Q Directed acyclic graphs (DAGs) and IOTA - https://youtu.be/lfgMnbb5JeM We are all blockchain weirdos - https://youtu.be/wvxPnD9edMw Developer compensation and performance indicators - https://youtu.be/erdLZF8GDzE Andreas M. Antonopoulos is a technologist and serial entrepreneur wh ... https://www.youtube.com/watch?v=C3N_WsJkuQk

There are many options for activating soft forks, which one is best? BIP8? BIP9? Miner activated? User activated? This question is from the March monthly patron session, which took place on March 21st, 2020. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a Community Builder on Patreon: https://www.patreon.com/aantonop Related Videos: Bitcoin Q&A: What is a fork? - https://youtu.be/QwEDtdkV3Q4 Forkology: A Study of Forks for Newbies - https://youtu.be/rpeceXY1QBM Bitcoin Q&A: Are chain splits a governance failure? - https://youtu.be/2pJEEVEmEVw Bitcoin Q&A: What happens to our bitcoins during a hard fork? - https://youtu.be/sNR76fWd7-0 Open Blockchain Development Culture - https://youtu.be/oDSPfrZeWfU Andreas M. Antonopoulos is a best-selling author, speaker, educator, and highly sought after expert in Bitcoin and open blockchain technologies. Andreas has written two best-selling technical books for programmers, “Mastering Bitcoin” and “Mastering Ethereum”. He has published “The Internet of Money” series of books, which focus on the social, political, and economic importance and implications of these technologies. He is known for making complex subjects easy to understand and highlighting both the positive and negative impacts these technologies can have on our global societies. Subscribe to this channel to learn more about Bitcoin & open blockchains; click on the red bell to enable notifications about new videos! Follow on Twitter: @aantonop // https://twitter.com/aantonop Connect on Facebook: https://www.facebook.com/AndreasMAntonopoulos Connect on LinkedIn: https://www.linkedin.com/company/aantonop/ Follow on Instagram: https://www.instagram.com/amantonop/ Learn More: aantonop.com Listen to the “Unscrypted” Podcast: https://aantonop.com/unscrypted/ MASTERING BITCOIN, 2nd Edition: https://amzn.to/2xcdsY9 Translations of MASTERING BITCOIN: https://bitcoinbook.info/translations-of-mastering-bitcoin/ MASTERING ETHEREUM: https://amzn.to/2xdxmlK THE INTERNET OF MONEY, v1: https://amzn.to/2ykmXFs THE INTERNET OF MONEY, v2: https://amzn.to/2IIG5BJ THE INTERNET OF MONEY, v3: https://aantonop.io/tiomv3 Translations of THE INTERNET OF MONEY: Spanish, 'Internet del Dinero' (v1) - https://amzn.to/2yoaTTq German, 'Das Internet des Geldes' (v1) - https://amzn.to/2LEiyqO German, 'Das Internet des Geldes' (v2) - https://amzn.to/2VCzse5 French, 'L'internet de l'argent' (v1) - https://www.amazon.fr/Linternet-largent-Andreas-M-Antonopoulos/dp/2856083390 Vietnamese, 'Internet Của Tiền Tệ' (v1) - https://alphabooks.vn/khi-tien-len-mang Music: "Unbounded" by Orfan (https://twitter.com/grassfedbitcoin) ... https://www.youtube.com/watch?v=ty-QQN3l7Ig

What is your opinion on directed acyclic graphs (DAGs) and whether they can achieve the same level of decentralisation, security, and censorship resistance? DAGs are not vaporware, but the cryptocurrency projects using them mostly employ proof-of-stake (PoS) or proof-of-authority consensus mechanisms, which cannot be compared to proof-of-work (PoW) yet because they have not been tested at the same scale. PoW in Bitcoin, with a thermodynamic cost, will be hard to replace. Even though IOTA employs a PoW-type mechanism, they technically use proof-of-authority because IOTA is currently reliant on one special "Coordinator" node, run by their Foundation, to verify all transactions; if they were to shut it off today, we have no idea whether the other 'sub nodes' would be able to maintain its current level of security. We can begin to make real comparisons once it is no longer centralised. This is a question from the patron-only live Q&A which took place on January 27th 2018. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop RELATED: Altcoins and the scaling debate - https://youtu.be/slbpdW-H3yk Do altcoins threaten to replace bitcoin? - https://youtu.be/w-V_5EWyU5c The Scaling Rites of Passage - https://youtu.be/rZi86_ovB3Y Scaling, trust, and trade-offs - https://youtu.be/vCxmHwqyJWU Scaling complex systems - https://youtu.be/dm9m1oQr6Ks Governance trade-offs in decentralised systems - https://youtu.be/dtwaW79Fj7c Governance and the transaction fee market - https://youtu.be/gdknUUVOdHU Unstoppable code - https://youtu.be/AQx3E3F8Kz4 We all started as critics - https://youtu.be/-jvefuVRwYA Why running a node is important - https://youtu.be/oX0Yrv-6jVs The new experimental science of consensus algorithms - https://youtu.be/6N5XlU7Iajk Security in proof-of-work vs. proof-of-stake - https://youtu.be/dstjlfW4-g8 Proof-of-Work (PoW), Proof-of-Stake (PoS), Delegated Proof-of-Stake (DPoS) - https://youtu.be/3W_3AQrQEOM Consensus with decentralized oracles and real-world variables - https://youtu.be/8bYmK6sZL00 Intrinsic vs. extrinsic assets - https://youtu.be/KDtfFNZy9xg What is mining? - https://youtu.be/t4p4iMqmxbQ Energy consumption - https://youtu.be/2T0OUIW89II Solar energy and mining in space - https://youtu.be/cusakcpa8AM What is the biggest threat? - https://youtu.be/1-XUbH1F0Os Immutability and Proof-of-Work: The Planetary Scale Digital Monument - https://youtu.be/rsLrJp6cLf4 Bitcoin: "Failing to Scale" - https://youtu.be/bFOFqNKKns0 Ethereum, ICOs, and Rocket Science - https://youtu.be/OWI5-AVndgk The Lion and the Shark: Divergent Evolution in Cryptocurrency - https://youtu.be/d0x6CtD8iq4 Andreas M. Antonopoulos is a technologist and serial entrepreneu ... https://www.youtube.com/watch?v=lfgMnbb5JeM

Keywords/phrases: Bitcoin's graceful scalability over decades. Bitcoin scalability problems and options to “solve” it over and over again. Scaling is an engineering issue. ... https://www.youtube.com/watch?v=NMzBatr4mMk