Bitcoin Q&A: What was SegWit2x?

published on Nov 08, 2018 by aantonop Favorite
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A review on some "deep history" of Bitcoin... that is, one year ago. What was SegWit2x? Why should block sizes be limited? What is the "real Bitcoin"? What are the interdependent consensus constituents, and how do consensus changes succeed or fail?

These questions are from the MOOC 8.2 session and the (late) August monthly Patreon session, which took place on September 15th 2017 and September 1st 2018 respectively. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron:

Consensus Algorithms, Blockchain Technology, and Bitcoin -
Advanced Bitcoin Scripting Part 1: Transactions and Multisig -
Advanced Bitcoin Scripting Part 2: SegWit, Consensus, and Trustware -
What is Consensus: Rules without Rulers -
Forkology: A Study of Forks for Newbies -
Bitcoin: Where the Laws of Mathematics Prevail -
The mining process -
Genesis block and coinbase transactions -
The rules of Bitcoin (part 1) -
The rules of Bitcoin (part 2) -
Decentralized power, leaderless governance -
Scaling, trust, and trade-offs -
Why running a node is important -
Honest nodes and consensus -
Do "crypto-banks" threaten hard money? -
Running nodes and payment channels -
What happens during a fork? -
Empty blocks, orphan blocks, and valid chains -
SegWit adoption -
How do mnemonic seeds work? -

Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin.

Follow on Twitter: @aantonop

He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters.

Subscribe to the channel to learn more about Bitcoin & open blockchains; click on the red bell to enable notifications about new videos!


Translations of MASTERING BITCOIN:



Translations of THE INTERNET OF MONEY:
Spanish, 'Internet del Dinero' (v1) -
French, 'L'internet de l'argent' (v1) -
Russian, 'Интернет денег' (v1) -
Vietnamese, 'Internet Của Tiền Tệ' (v1) -


Music: "Unbounded" by Orfan (
Outro Graphics: Phneep (
Outro Art: Rock Barcellos (

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