2018년 4월 11일 연세대 4차 산업혁명 런치포럼에서 강의한 '블록체인이 꿈꾸는 세상' 강의 자료입니다. 동영상(https://youtu.be/Ghb4pKaMOa4)과 글(https://organicmedialab.com/2018/01/12/what-blockchains-dream/)을 함께 보시면 더욱 도움이 됩니다.

1. 블록체인이 꿈꾸는 세상:
What Blockchains Dream
2018. 4. 11.
Prof. Sangkyu Rho
Seoul National University
Organic Media Lab

2. The DAO
DuPont, Quinn. Experiments in Algorithmic Governance: A history and ethnography of ‘The DAO,’ a failed Decentralized Autonomous Organization.”
(ed. Malcolm Campbell-Verduyn) Bitcoin and Beyond: Cryptocurrencies, Blockchains and Global Governance (forthcoming).

3. © Organic Media Lab(http://organicmedialab.com), 2018 3
https://www.nytimes.com/2016/05/22/business/dealbook/crypto-ether-bitcoin-currency.html?mcubz=0

4. © Organic Media Lab(http://organicmedialab.com), 2018
Apr
4
https://bitcoinmagazine.com/articles/the-dao-raises-more-than-million-in-world-s-largest-crowdfunding-to-date-1463422191/

5. © Organic Media Lab(http://organicmedialab.com), 2018 5
https://www.wired.com/2016/06/50-million-hack-just-showed-dao-human/

6. Bitcoin = Blockchain?

7. © Organic Media Lab(http://organicmedialab.com), 2018
Philosophy Behind Bitcoin
7
Decentralization

8. © Organic Media Lab(http://organicmedialab.com), 2018
No center!
Everybody has copies!
Everybody decides!
Secrets never shared!
Bitcoin:We are the Bank!
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9. © Organic Media Lab(http://organicmedialab.com), 2018
What Blockchain Solves
Trust Problem without trusting anyone
• Double spend problem when you can have perfect
copies
• Integrity problem when everybody has copy
• Security problem when no one has control
• Privacy problem when everything is traceable
• Incentive problem when anyone can participate & leave
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10. © Organic Media Lab(http://organicmedialab.com), 2018
Cryptoeconomic System*
Cryptography to prove something happened
Economic incentives to achieve desired
behaviors & properties
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* http://vitalik.ca/files/intro_cryptoeconomics.pdf

11. © Organic Media Lab(http://organicmedialab.com), 2018
Bitcoin:“Internet of Money”
Impossible to double spend
Instant, global, (almost) free, and open
Attack resistant, privacy preserving,
transparent, and immutable
But, very SLOW
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12. © Organic Media Lab(http://organicmedialab.com), 2018
Why Blockchain Matters
Immutable & transparent containers to store
and value of any kind (e.g., money, signatures,
contracts, stocks, bonds, even cars)
Smart contracts as autonomous, independent
economic agents
New ways to organize and collaborate
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13. Smart Contract

14. © Organic Media Lab(http://organicmedialab.com), 2018
Bet with a Friend
Me Friend
Another Friend
1 ETH
“Will it rain tomorrow?”
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Can I trust my friends?
Organic Media Lab 2017

15. © Organic Media Lab(http://organicmedialab.com), 2018
A Smart Contract for Betting
Organic Media Lab 2017
Me Friend
An Oracle
Smart Contract:
Will it rain
tomorrow?
1 ETH 1 ETH
?
15
Yes No

16. © Organic Media Lab(http://organicmedialab.com), 2018
Properties of Smart Contracts
Autonomous
Independent
Economic
Self-enforcing
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17. © Organic Media Lab(http://organicmedialab.com), 2018
Contracts in our life
Social
Political
Economic
• Oliver Hart & Bengt Holstrom won Nobel Prize in
2016
Legal
17

18. © Organic Media Lab(http://organicmedialab.com), 2018
“Uber” in a Blockchain World
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DAO*
*DAO = Distributed Autonomous Organization
**USN = Universal Sharing Network
USN**
Organic Media Lab, 2016

19. Decentralized
Organisation

20. © Organic Media Lab(http://organicmedialab.com), 2018
Decentralization?
20

21. © Organic Media Lab(http://organicmedialab.com), 2018
Decentralization:
Technological Perspective*
Architectural: How many physical computers?
Logical: Single truth?
Political:Who has control?
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*https://medium.com/@VitalikButerin/the-meaning-of-decentralization-a0c92b76a274
blockchain!

22. © Organic Media Lab(http://organicmedialab.com), 2018
Decentralization:
Organizational Perspective
End of Middlemen
End of Hierarchy
End of Boundary
22

23. © Organic Media Lab(http://organicmedialab.com), 2018 23
Network
(P2P)
Node
(3rd Party)
Network
Hierarchy
Organic Media Lab, 2016
4 Types of Organizations

24. © Organic Media Lab(http://organicmedialab.com), 2018 24
4 Types of Organizations
Organic Media Lab 2017

25. © Organic Media Lab(http://organicmedialab.com), 2018 25
http://news.kmib.co.kr/article/view.asp?arcid=0923654003&code=11151300
http://news.mt.co.kr/mtview.php?no=2017022213450752947&MNF

26. © Organic Media Lab(http://organicmedialab.com), 2018
As Is
26
Organic Media Lab 2017

27. © Organic Media Lab(http://organicmedialab.com), 2018
What banks dream
27
Organic Media Lab 2017

28. © Organic Media Lab(http://organicmedialab.com), 2018
What blockchains dream
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Organic Media Lab 2017

29. © Organic Media Lab(http://organicmedialab.com), 2017
조직없는 조직화
(Organising without Organisations)
Organic Media Lab, 2017

30. © Organic Media Lab, Inc. http://organicmedialab.com
We, as a Network

31. © Organic Media Lab(http://organicmedialab.com), 2018
What do we do?
Unlearn what we have learned
Learn to learn
Enjoy the ride
31

32. Recommended Readings
http://organicmedia.pressbooks.com http://organicbusiness.pressbooks.com http://organicmedia2.pressbooks.com

33. Any Questions?
Visit: www.organicmedialab.com
E-mail: srho@snu.ac.kr
Facebook: sangkyu.rho
LinkedIn: Sangkyu Rho
Twitter: @srho77