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FinTech Lecture 3 : Internet Technology and Governance (1)

FinTech Lecture 3 : Internet Technology and Governance (1)

Slides I used for FinTech - Financial Innovation and the Internet 2022 Fall at Graduate School of Business and Finance, Waseda University on October 14, 2022.

Kenji Saito
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October 14, 2022
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  1. Sending money — generated by Stable Diffusion.
    FinTech — Financial Innovation and the Internet 2022 Fall
    Lecture 3 : Internet Technology and Governance (1)
    Kenji Saito, Graduate School of Business and Finance, Waseda University
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.1/46

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  2. This class is recorded
    7 out of 15 lectures will be online only. When online,
    Camera ON is recommended, but not required
    You do need to speak often anyway (we are going to have a lot of dialogue)
    We will use breakout rooms a lot, but those won’t be recorded unless you do it yourselves (need to be allowed)
    Keep your Zoom client updated!
    We might use latest features
    The recordings could be used for research on (online) learning
    Transcribed for use and anonymized
    Will let you know when the necessity arises
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.2/46

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  3. The lecture slides can be found at :
    https://speakerdeck.com/ks91
    Recording and chat text will be posted at Moodle and Discord
    Trial automatic transcription for online lectures will be posted at Discord
    I’ve found that Zoom’s transcription feature is helpful, so I’ll try
    . . .
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.3/46

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  4. Schedule (provisional)
    Lecture 1 9/30 Overview of FinTech (1) •
    Lecture 2 10/7 Overview of FinTech (2) •
    Lecture 3 10/14 Internet Technology and Governance (1) — online •
    Lecture 4 10/21 Internet Technology and Governance (2)
    Lecture 5 10/28 The World of Apps (1) — online
    Lecture 6 11/11 The World of Apps (2) — online
    Lecture 7 11/18 Blockchain (1) — online
    Lecture 8 11/25 Blockchain (2)
    Lecture 9 12/2 Smart Contracts (1) — online
    Lecture 10 12/9 Smart Contracts (2)
    Lecture 11 12/16 Smart Contracts (3) — online
    Lecture 12 12/23 Cyber-Physical Society and Future of Finance
    Lecture 13 1/13 FinTech Ideathon (1) — online
    Lecture 14 1/20 FinTech Ideathon (2)
    Lecture 15 1/27 Presentations and Conclusions
    Online presence is possible but not recommended for non-online lectures for interactivity reasons
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.4/46

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  5. Last Week, We Did
    . . .
    Changes in the Economy and Labor — How?
    Tetrad — A Tool for Analyzing Media (Industrial Tools)
    Gutenberg Galaxy and Its Reversal
    Future of Monetary-Financial System?
    Discussion : Does FinTech Free People? — maybe at later class
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.5/46

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  6. Today’s Topics
    Tetrad (reprise)
    Assignment Review
    Internet Technology
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.6/46

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  7. Tetrad : A Tool for Analyzing Media
    Where media nearly equal industrial tools
    What haven’t you noticed lately?
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.7/46

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  8. Tetrad (group of four)
    4 questions about a medium (= any technology or artifact)
    ENHANCES
    . . .
    What does the medium enhance?
    OBSOLESCES
    . . .
    What does the medium make obsolete?
    RETRIEVES
    . . .
    What does the medium retrieve that had been made
    obsolete earlier?
    REVERSES
    . . .
    What does the medium reverse or flip into when pushed to
    extremes?
    – McLuhan, “Laws of Media”
    Questions that can be asked of any media
    What are the side effects of the media on people and society?
    Especially, when a new medium (M1) appears, it would obsolesces some existing medium (M2) that has obsolesced
    some other medium (M3), so that M3 would be retrieved by M1, as M2 is now becoming obsolete
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.8/46

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  9. Tetrad of Monetary-Financial System (reprise)
    Exchange and consumption
    Savings and investment
    Specialization, agricultural/industrial society
    Inequality, exploitation and bankruptcy
    Bullshit jobs
    Digital currencies, FinTech and beyond
    enhancement ENH- -REV reversal
    retrieval RET- -OBS obsolescence
    Control and obedience, hierarchy
    Maximization of profits
    Moneyless credit system
    Gift economy
    Generailzation (of skills), hunter-gatherer society
    New medium “retrieves” what was previously made “obsolete”
    Will “gift economy”, “generalization (of skills)” and “hunter-gatherer society” really be retrieved?
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.9/46

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  10. Is REVERSAL Negative?
    It’s a hint to think of the “reversal” items as “new bad things” and “new
    technology” that could counter that bad things
    Thanks for the conversation I had with a student after class last week
    But the phenomenon itself is neutral
    It would be the interaction with people with a particular value system that would determine
    whether it is good or bad
    For example, is equality good or bad?
    Let’s take a look at Academy Camp Child Safeguarding Charter
    https://academy-camp.org/child-safeguarding-charter/
    Even in egalitarian hunter-gatherer societies, there can be fierce resistance to treating
    people equally (or standardizing people)
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.10/46

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  11. Assignment Review
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.11/46

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  12. Assignment 1. “Tetrad of the Internet”
    (1) Draw a tetrad of the Internet
    Write a bulleted list of what the Internet “enhances”, makes “obsolete”,
    “retrieves” and what it “reverses” into
    (2) Based on the tetrad you drew, briefly describe how the Internet affects
    finance
    Please be concise
    Deadline and how to submit
    October 11, 2022 at 17:59 JST
    From Moodle (mandatory)
    Optionally, you can also post to #assignments channel at Discord
    So that people can comment on your reports and start discussions more easily
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.12/46

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  13. Trends and Measures
    Trends
    . . .
    of your reports Measures
    . . .
    how to improve the class
    23 out of 30 students submitted (as of Wednesday morning; better late than never)
    If you don’t see your listed items in the big aggregated tetrad we will see shortly, did you by any chance submit only
    at Discord, or at Moodle but using image (or PDF/PPT) instead of text so that they cannot be copied and pasted
    easily? (Just text, please)
    At Discord, too, please consider sharing by plain-text, as sharing by PDF/PPT means that we have to download your
    reports and manage files
    Effects on finance may be a little too conventional (albeit they are good)
    Normally, what everyone knows is 20 years behind (Drucker, 1990)
    RET and REV seemed difficult to think about (you did pretty good on RET, though)
    RET in this case : what was made “obsolete” primarily by TV, printing or physical space
    REV in this case : similar effects as those of TV, printing or physical space
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.13/46

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  14. Tetrad of the Internet by You (collectively)
    ENH
    OBS
    RET
    REV
    Important but often overlooked effects Revived because of
    the obsolescence
    Accessibility of information
    Communication
    Shopping, Money Transfer
    Direction finding
    Pandemics…
    Casual communication by courrier
    Catalogs, newspaper and every papers things
    Data
    algorithms designed to capture user attention
    targeted ads
    Always more at hand with smartphone, smartwatches, home services
    security protocols
    computing power
    information gathering
    Anonymity
    Mechanical machines
    repetitive work human labor
    Information
    Better anonymity means less publicity and possibly less security
    Exchange of infomation
    Response time
    Landline telephones
    Postal Banking
    Tribes (Cultures group)
    Ponzi schemes (asymmetry information)
    Personal boundaries
    (Threat to) Privacy and Securities
    information transfer speed,
    make small device very powerful
    mail
    many intermediaries or wholesalers business
    Traditional financial models (such as cash)
    human relationship
    less and less face-to-face communication
    interpersonal communication
    thought-less acts
    rumor
    cybercrime
    letters forum industrial society
    presswork
    publication
    Decentralization and globalization
    Travel and physical presence
    Freedom of expression
    Anarchy and chaos
    Overload and redundancy
    concentration
    tribalism
    knowledge dissemination
    fake copy right
    fraud
    equality
    freedom
    hierarchy
    Mobility
    IoT
    People are governed by recommendation algorithms
    Bias
    General and horizontal/widespread knowledge
    Libraries
    Gossip
    Monopolization of access to knowledge by designated authorities
    Meaningless waiting time
    Written signature or seal
    Blogging, journalism
    Productivity
    SMS/MMS (i.e., cellular network device-to-device communication)
    FAX
    television
    radio
    Democratic content creation
    Closed, niche sub-cultures
    Cultural Homogeneity
    Political polarization
    Instant gratification society
    Inequality / exclusion
    Teachers / Instructors
    Services/ sales at your door
    remoteness
    storage
    competition
    libraries
    storage of information
    dark web money laundering
    deepfakes
    Creation/diffusion of new services
    Virtual reality world
    innovation of daily life
    business tools
    sharing
    FinTech
    Virtual reality
    Country border/physical limits
    Obsession with the internet
    Materialism
    Activists
    Censorship
    international community
    consumer experience
    cyberbullying
    uniformisation of the population
    Transparency
    Chores
    Physical stores/branches
    Business travel
    Censorship
    Communities
    No incentive to go out
    Trade
    Unemployment rate decreases (because of online work)
    Modern “smart” technologies, like smart homes
    Freedom of movement
    Illegal online employment
    Your money might be “blocked”
    Cyberstalking
    More publicity
    creation of an online persona
    Echo chamber
    parasocial relationship
    Propaganda
    Influencers
    Physical maps
    Blue
    . . .
    interesting
    Black
    . . .
    suitable
    Gray
    . . .
    controversial
    (IMHO)
    Let’s see whether the classi-
    fication is right or not later
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.14/46

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  15. For reference: Tetrad of the Internet by Saito
    End-to-End, best effort
    Human network
    Commons, neutrality and diversity
    Cyber crimes, fake news
    Firewalls, network divisions
    Echo chambers, no privacy
    enhancement ENH- -REV reversal
    retrieval RET- -OBS obsolescence
    Hunter-gatherer society (generalization)
    Versatility of individuals, holacracy
    Credit systems and gift economy
    Agricultural or industrial society (specialization)
    Control and obedience, hierarchy
    Profits and monetary economy
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.15/46

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  16. W-san’s View
    Less financial office workers, bigger technical support team
    ⇒ You’ve turned your attention to people working
    Great perspective
    At the same time, banks are already trying to hire informatics graduates (not just for
    support), so perhaps a bigger change is on its way
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.16/46

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  17. R-san’s View
    . . .
    it is no longer necessary to be an expert to carry out financial transactions
    and invest, but there are numerous tools (apps, trainings
    . . .
    ) that make the
    world of finance within reach
    . . .
    the possibility of ‘self-training’ leads one to think of the return of ‘self taught’
    men/women, who are independent and do not necessarily need financial
    institutions to carry out their transactions directly
    ⇒ In a broad sense, maybe a change from instructionism to constructionism
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.17/46

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  18. M-san’s View
    . . .
    there is a striking estimation of 37 per cent of the world’s population (ITU
    Hub, 2021) who have still never used the internet
    Will this population be excluded from the future of financial services?
    If so, will this further perpetuate the inequality that exists within underserved
    communities?
    ⇒ An important issue
    How much of the population can actually be covered by technological trends such as
    ubiquitous and pervasive
    That do not require adaptation to technology on the part of those who interact with it
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.18/46

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  19. T-san’s View
    There is a Fintech company called LendingClub in the United States matches
    people who want to lend money and people who want to borrow money
    Since the interest rate varies depending on the creditworthiness of the
    borrower, it is possible for individuals with good financial conditions to borrow
    at low interest rates
    This can be considered to be an example of the impact that the Internet made
    against finance through the creation of alternative lending destinations to
    banks
    ⇒ Good to describe the changes with examples
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.19/46

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  20. L-san’s View
    However, this can also have security threats and censorship, and privacy
    issues, since all transactions are online and recorded
    ⇒ We’ll take a closer look at countering these threats in later classes
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.20/46

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  21. Let’s Talk
    ⇒ What would be the side effects of the Internet on finance?
    Let’s discuss in breakout rooms
    First, look at the tetrad you made collectively, see if blue, black and gray classification is right
    and if there are more effects of the Internet
    Then discuss side effects of the Internet to finance
    It will help to look primarily at RET (retrieval) and REV (reversal)
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.21/46

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  22. Internet Technology
    What’s “digital”? ← Let’s ask
    What’s “communication”?
    What’s “network”?
    What’s “TCP/IP”?
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.22/46

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  23. What’s “Digital”?
    Represents information by numbers
    Ex1
    : Assigns a number to a character (encoding)
    (65 (0x41)) (97 (0x61))
    (‘0x’ stands for hexadecimal)
    ASCII (American Standard Code for Information Interchange) / UTF-8
    If you want to convert uppercase to lowercase, add 32 (0x20) to the letter
    Ex2
    : Audio CD (sampling and quantization) ← Do you know what CD is? ;)
    Stereo 44.1kHz sampling and 16bit quantization (which is far below studio quality today)
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.23/46

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  24. Advantages of “Digital”
    Common means of communication → low-cost common base
    Put everything in a USB flash drive, put everything on the web
    “Put anything on it” is the whole idea of USB (Universal Serial Bus) to begin with
    Do you know what bus is?
    Improvement of transmission quality → No degradation of information
    Degradation occurs during sampling and quantization, but does not occur
    after that
    Concealment or proof of communication → Encryption or digital signature
    Public key cryptography (we will have a chance to take a deeper look at it in later class)
    More efficient transmission → Packet communication, compression
    One single physical communication medium shared by multiple uses at the same time
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.24/46

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  25. How Information is Communicated
    Communication between human minds
    Expressed and conveyed
    Digitization determines the amount of
    information and conveys it efficiently
    But some things are always lost
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.25/46

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  26. What’s Internet?
    Foundation for communication in which digital information is exchanged
    Social / requirement aspect
    Network of networks
    Technological / functional aspect
    What’s communication? What’s network?
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.26/46

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  27. Can Humans and Dogs Communicate?
    photo by nikoretro
    Those who think they can
    Those who think they cannot
    Why?
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.27/46

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  28. Definition?
    Communication
    1. The exchange of thoughts, messages, or information, as by speech,
    signals, writing, or behavior
    2. Interpersonal rapport
    — “The American Heritage Dictionary”
    It’s undeniable that you feel that humans and dogs feel close to each other
    . . .
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.28/46

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  29. Human-Dog Communication
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.29/46

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  30. Mechanism of Communication
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.30/46

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  31. Enviroments and Communication
    Photo by SLU Madrid Campus
    Can humans communicate with each
    other in any environment?
    We use signals under water
    The meaning is conveyed
    What can you change?
    What has to remain unchanged?
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.31/46

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  32. Protocols and Layers
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.32/46

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  33. Definition?
    Protocol
    1. the official procedure or system of rules governing affairs of state or
    diplomatic occasions
    2. the original draft of a diplomatic document, especially of the terms of a
    treaty agreed to in conference and signed by the parties
    3. a formal or official record of scientific experimental observations
    4. Computing a set of rules governing the exchange or transmission of
    data between devices
    — “Oxford Dictionary of English”
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.33/46

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  34. Network and OSI Reference Model
    OSI : Open Systems Interconnection
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.34/46

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  35. Networks and a Relay
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.35/46

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  36. Definition?
    Network
    2. a group or system of interconnected people or things
    a complex system of railways, roads, or other routes:
    the railway network
    a group of people who exchange information and contacts for
    professional or social purposes: a support network
    .
    .
    .
    a number of interconnected computers, machines, or operations:
    a computer network
    .
    .
    .
    — “Oxford Dictionary of English”
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.36/46

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  37. Railway Model of Computer Networks
    In the railway model, “×× line” is a network (hopefully someday this map will look familiar for everyone)
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.37/46

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  38. Railway Model and a Relay
    "SFMBZTUBUJPODPOOFDUTUIF
    OFUXPSLT
    "OFUXPSLJTEJSFDUMZ
    DPOOFDUFECZBUSBJO -"/

    3BJMT
    5P[BJ-JOF
    8BTFEB4U
    &YJU
    8BTFEB6OJW
    8BTFEB

    3BJMT
    .JUB-JOF
    .JUB4U
    ̖
    ,FJP6OJW
    .JUB

    3BJMT
    ɹ0UFNBDIJ4U
    .JUB-JOFc5P[BJ-JOF
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.38/46

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  39. TCP/IP
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.39/46

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  40. Railway Model and TCP/IP
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.40/46

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  41. IP Does Not Guarantee
    Does not guarantee packet delivery
    No performance or reliability requirements for lower layer networks
    No lower limit, and no upper limit
    ↑ Easy to enter, and does not hinder new development for improvements
    Does not guarantee packet delivery order
    Can cope with congestions and faults by changing the route
    TCP recovers from errors
    Resend packets and/or rearrange the order
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.41/46

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  42. Railway Model and TCP/IP (Story of students sending scrolls)
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.42/46

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  43. Story of Students Sending Scrolls (1/3)
    Background — Waseda and Keio Univ.
    Two among the best private universities in Japan
    These two universities are known for their rivalry and matches in baseball and other sports known as “ ” (first
    characters of Waseda, Keio and match), although Keio students would often call it “ ” ;)
    For undergraduates, classes may have to be cancelled for students to go cheer on the baseball team
    Story
    The head of the Keio cheerleading squad sends a letter of challenge in the form of a
    traditional scroll to the head of Waseda’s cheerleading squad
    It is a very long scroll that has to be untied from Keio’s Mita campus, slipped into Mita Station
    on the Mita Line, and then slipped out from Waseda Station on the Tozai Line to reach the
    Waseda campus so that the head of Waseda’s cheerleading squad can read it
    This is a metaphor of stream communication over the Internet as we do it via Zoom at the class
    Two ways
    TCP (Transmission Control Protocol)
    . . .
    Don’t miss reading every word of it (e.g. browsing a web page)
    UDP (User Datagram Protocol)
    . . .
    Well, it’s a long scroll, and it’s okay if it’s missing parts (e.g. Zoom)
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.43/46

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  44. Story of Students Sending Scrolls (2/3)
    Story – continued
    Either way, inside the entrance of Mita Station, there is a photocopier, which copies just part
    of the scroll at a time, and students pass through the ticket gate with one fragment each in
    their hand
    Each fragment is sequentially numbered from the top of the scroll
    Students are not familiar with the railway network, and when they ask the station staff how to
    get to Waseda, they are told to go to Otemachi, so they do
    Students ask again at Otemachi Station (router), and are told to change to the Tozai Line
    When they arrive at Waseda Station, a student operates a scanner/printer before the exit,
    scanning the fragments in numerical order and outputting a long scroll on the printer, and
    students pull it to the Waseda campus
    Now, some students may get lost on the way
    What would you do?
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.44/46

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  45. Story of Students Sending Scrolls (3/3)
    Story – still continued
    TCP
    Students pick up their receipts (with fragment #) at Waseda Station and take them back to
    Mita Station
    At Mita Station, if a receipt is not returned, it is assumed that the fragment was not
    delivered, and another student is sent out with the fragment
    UDP
    Why do we care if some students get lost?
    (They are grown up, and we are certain that they will make it to their home)
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.45/46

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  46. See You Next Week!
    Have a nice weekend!
    Lecture 3 : Internet Technology and Governance (1) — FinTech — Financial Innovation and the Internet 2022 Fall — 2022-10-14 – p.46/46

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