The document summarizes the history of Bitcoin scaling debates and solutions from 2015 to 2017. It discusses proposals like Bitcoin XT, Bitcoin Unlimited, and Bitcoin Classic that aimed to increase the block size limit. It also covers the development and activation of Segregated Witness (Segwit) and disagreements between Bitcoin Core and Bitcoin Unlimited supporters. The document concludes by discussing the creation of Bitcoin Cash from a hard fork and predictions for Bitcoin's future adoption of technologies like the Lightning Network.

1. Fork your mother
if you want fork
A short history of Bitcoin scaling wars
by cryptofan

2. Bitcoin
● Decentralized
● Censorship resistance
● Store of value
● Deflationary
● Privacy-enhancing
● Payment system

3. Scaling problem

4. Block size increase
● Bitcoin XT
● Bitcoin Unlimited
● Emergent Consensus
● Bitcoin Classic
● BCH
● Segwit2X

5. Small blocks = many full nodes = decentralization
Bitfury study: http://bitfury.com/content/5-white-papers-research/block-size-1.1.1.pdf

6. Sidechains!

7. Bitcoin core
Bitcoin core release 0.15.0

8. Segregated witness (Segwit)

9. Segwit is softwork
Needs 95% hashpower to signal

10. Segwit signaling

11. Bitcoin Unlimited
● Dynamic maximum block size by miners vote
● Unknown developers team
● $1 mln for development granted by Roger Ver
● Jihan Wu, founder of Bitmain mining pool
Roger Ver Jihan Wu

12. HARD FORK

14. Bitcoin unlimited signaling

15. Vinny Lingham’s strategy:
Let’s dump Bitcoin price to
$300. So miners will suffer
and accept Segwit

17. Bitcoin Unlimited full nodes collapse

18. UASF = full nodes reject non-segwit blocks

19. AsicBoost
● 20% electricity cost reduction in Bitcoin mining
Gregory Maxwell

21. Segwit in Litecoin!

22. New York Agreement (Segwit2x)
● Activate Segregated Witness at an 80% threshold, signaling at bit 4
● Activate a 2 MB hard fork within six months
Barry Silbert

27. #No2X movement

28. Bcash (aka Bitcoin cash) HF

29. Small blocks = decentralization
Bitfury study: http://bitfury.com/content/5-white-papers-research/block-size-1.1.1.pdf

30. Bitcoin vs Bcash vs Visa / Master card
Throughput Decentralized & CR Open source
Bitcoin - (5 trans/s) + +
Bcash +/- (>5 trans/s ?) - -
Visa / Master card + (1k-2k trans/s) - -

32. Bcash difficulty attacks

34. Bcash attack November 13th
● Wait for bitcoin difficulty adjustment (the next one in 2 weeks)
● Spam bitcoin blockchain
● Pump BCH price
● Switch mining to BCH
● Social media propaganda: Bcash is Bitcoin
● Roger Ver moves 45000 bitcoins to exchanges “to buy Bcash”

39. Bithumb crash

40. What’s next?
Segwit adoption = effectively bigger blocks (~4.3 Mb) and cheaper transactions

41. What’s next?
Broadcasting blockchain through satellites and radio

42. What’s next?
Smart contracts

43. What’s next?
Lightning network

44. Confidential transactions

45. Bcash investors watch Bitcoin

46. @krys_krys (cryptofan)
@cryptofan_channel (cryptofan)
@krystoferivanov (cryptofan)