here is my blockchain prediction

1. Blockchain For Better
Version0.1 release

2. Sota Watanabe (2018)
Student at Keio University, Japan
Working at Chronicled
Worked at SoftBank Robotics
Chronicled is the first company to
leverage IoT, AI, and Blockchain
technologies to power end-to-end smart
supply chain solutions
I am a Blockchain Enthusiast.
Contact : sota.watanabe.fbfs@gmail.com

5. I am not sure…but, something wrong.
In this two years, I have been to 10 countries
including US. I saw a lot of problems like poverty,
disparity, discrimination, pollution, and so on. When I
was in India, a child came up to me begging for
money. He said “give me money”. Actually, it was my
first experience to be told such a thing. I was
shocked and I have been thinking the cause and
solution since then. Today, my passion is to make a
decentralized society where the edge has a power
to change the world.

6. Let’s Fix the Internet.
Today, the internet has many problems.

7. Why Does “Decentralization” Matter For ME?
Power to the “Edge” and Get Closer
Centralized /
Administers manage the community.
Peer to Peer system /
People are connecting
closer and closer

8. Some Examples
Existing methods are terrible.
• Taking long time
• Corruption
• Charge
• Exploitation
• More than 70% of world population
doesn’t have a bank account
• The people who really need money
don’t have an access to financial
services

9. The History of Technologies

10. Some Assumptions
“10% of global GDP will be stored on Blockchains by 2025”
World Economic Forum
“As disruptive and important as the PC and the Internet”
Mark Andreessen
“The technology most likely to change the next decade of
business is not the social web, cloud, robotics, or even artificial
intelligence. It’s the blockchain.”
Harbard Business Review
“Gartner Group forecasts an accelerating takeoff for blockchain platforms.
Blockchain is estimated to have delivered $4 billion in business value-add
or technology innovation in 2017, with that growing to $21 billion by 2020,
$176 billion in 2025 and $3.1 trillion by 2030, says Gartner.”
Gartner
Some Assumptions

11. Decentralized trust. That’s a big idea. When, in the history of humanity,
have we been able to execute this proposition?
Sure, perhaps in villages, but on a global scale? So let’s imagine a connected
global village—networked, rather—operating concurrently on a blockchain
system of global trust. For this to happen, this networked trusting village,
we must totally rethink our current economic systems, socio-political structures,
norms, and mores. That sort of disruption, or shall we say metamorphosis, is not
only logistically complicated but also downright threatening to existing structures
and systems. So what does that mean for blockchain technology?
-Sam Radocchia Co-founder at Chronicled, Forbes30 Under 30 List

12. My Prediction.
Decentralized Trust.
Post-Google
Post-Apple
Post-Facebook
Post-Amazon
Post-Microsoft
Post-IBM
Post-Twitter
Post-Uber
Post-Airbnb
Every transaction will be based on the decentralized trust.
But, how? There are both private blockchains and public blockchains.
These blockchains are connected each other.
現状、チェーン間に互換性はないがプロジェクトは動いている。

13. Network.

14. Sound Good? But, Welcome to Winter!
Crypto/Blockchain bubble is coming because a gap between
the expectation for technologies and the current status is huge.

15. Blockchain Has Still Many Technical Problems.
Scalability
Privacy
Real time transaction
Governance
And so on.

16. Scalability Solutions.
Bitcoin Ethereum
Lightning Network Raiden Network
Schnorr Sig Plasma
SNARKs
Sharding
Segwit(2X)
MAST

17. What is “Lightning Network”?
Lightning Network is a protocol for scaling and speeding
up blockchains. It was designed to solve some of the
technical limitations of the Bitcoin blockchain, but could
be implemented on top of any blockchain.

18. What is “Schenorr Sig”?
ECDSA
楕円暗号曲線分かんないので分かる人
いたら教えてください。
Planning to change the way of digital signature
Advantages
• Integrate multiple signatures
into a single signature
• More than 40% data reduction
might be possible
Schenorr Sig
A
C
B D

19. What is “Segwit(2X)”?
At the first time, the ways by which we can overcome the scalability problems
are only “reducing a transaction data size” or “making a block size bigger”.
So, what is the segwit2X
【ちなみに】Schenorr Sig自体はもともとあったが、 電子署名を格納するスペースの関係から導入には
ハードフォークが必要だった。Segwitをすれば電子署名はwitnessに格納されるのでソフトフォークで済む。
しかし、Segwitの導入にはまだハードルがある。

20. What is “MAST”?
ビットコインを送金するときは、「AからBに1BTC送金する」
という単純な取引だけでなく「BがAからの1BTCを10日間受け取らなかったら、
CとDが受け取れる」といった少し複雑な取引を行うことも可能。
条件分岐があるトランザクションでは柔軟に送金の挙動を設定することができるが、
条件分岐が複雑になればなるほどトランザクションのデータサイズが大きくなる。
MASTとはトランザクションスクリプトを従来とは異なった形式で保存する技術。
抽象構文木で条件分岐したスクリプトをそれぞれの条件で分割し、
マークル木で全てのスクリプトが提示されなくてもある条件がそのスクリプトに含まれて
いるかどうか確認することができる。

21. What is “Plasma”?
Similer to state channel. However, the transactions are processed on plasma blockchains
instead of off-chains, and the transaction speed is increased.
• Reducing the data which is preserved on Ethereaum blockchain.
• Increasing the transaction speed.

22. What is “Sharding”?
A F
E
DC
B
Miner Miner
A→D
B→E
C→F
A→D
B→E
C→F
A F
E
DC
B
Miner Miner
A→D
C→F B→E
極端にいうとこんな感じだと思います。

23. "You can verify the correctness of computations without
having to execute them and you will not even learn what
was executed”
ZK-SNARKs

24. Governance