LESSON PLAN

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Lesson plan

Level B1

The Mystery of Bitcoin: Understanding Its Origins and Impact

Lesson overview

In October 2008, "Bitcoin: A Peer-to-Peer Electronic Cash System" emerged, proposing a decentralized currency. Despite its growth, the identity of creator Satoshi Nakamoto remains unknown, fueling speculation and theories.

Reading text

READING TEXT

In late October 2008, a document appeared online. This nine-page paper was called "Bitcoin: A Peer-to-Peer Electronic Cash System." It suggested a new idea when the world economy was in trouble. Imagine a world without banks. Instead, there would be a digital currency called Bitcoin. This idea came from the cypherpunk movement of the 1990s. This group wanted to use cryptography to protect personal privacy from governments and companies.

Fast forward nearly twenty years, and Bitcoin has changed into a global financial asset. Interestingly, banks now accept it. However, the person who created Bitcoin is still unknown. The name “Satoshi Nakamoto” signed the original document, but no one knows who this is. Nakamoto mined the first Bitcoin on January 3, 2009, and then disappeared two years later. Many people want to find out who Nakamoto really is.

Over the years, many journalists have tried to discover Nakamoto’s identity. Recently, The New York Times suggested that Adam Back might be the creator. If Nakamoto is one person, he would be very rich. He would own about 1.1 million bitcoins, worth over $81 billion.

In 2011, The New Yorker mentioned Michael Clear, a student from Dublin. He denied being Nakamoto. Then, there was Vili Lehdonvirta, a Finnish researcher, who also said he was not Nakamoto. In 2014, Newsweek named Dorian Nakamoto, a Japanese-American man, as the creator. A year later, Craig Wright, an Australian computer scientist, claimed to be Nakamoto. However, evidence against him appeared later.

In 2024, a U.S. judge said Wright was not the creator of Bitcoin. In 2021, HBO released a documentary called "Money Electric: The Bitcoin Mystery." This film introduced Peter Todd, a Canadian software developer. Todd quickly said on social media, “I’m not Satoshi.”

The latest news from The New York Times brought attention back to Adam Back. He is the CEO of Blockstream and was part of the cypherpunk movement. Back created a proof-of-work system in the 1990s. This system was important for Bitcoin’s design. Investigators looked at many emails and writings to find connections between Back and Nakamoto. However, Back also denied being the creator.

Many conspiracy theories have appeared. Some people think crypto pioneer Nick Szabo or mathematician Shinichi Mochizuki might be Nakamoto. Others think government agencies are involved. After eighteen years, questions about Nakamoto’s identity keep growing. No proof has confirmed any claims, and no investigation has been verified.

Many in the cryptocurrency community believe Bitcoin is a group effort, not just one person’s idea. Javier Pastor, a trainer at Bit2Me, said, “It’s a puzzle with many contributors.” Supporters of Bitcoin think that having no central authority protects the system. If the creator were known, he could be targeted by governments or companies. The cypherpunks wanted to keep Bitcoin decentralized. They want to protect this idea.

The mystery of Nakamoto’s identity fits well with cryptocurrency’s philosophy. It shows the importance of privacy and independence from control. The lack of a known founder helps keep Bitcoin decentralized. This is different from traditional finance, which has central banks and institutions. Bitcoin changes this model. Its rules do not depend on people or institutions.

However, Bitcoin is now more connected to mainstream finance. Its transactions often happen on centralized platforms. The phrase “We are all Bitcoin” is popular in the community. It shows the desire for freedom from outside influences. Yet, as Román González, a product specialist, said, “We want a face, a biography, a human story.”

The search for Bitcoin’s creator raises important questions. If Nakamoto were found, it could change the market. The value of Bitcoin depends on the belief that only a limited number of coins exist. Many investors think Satoshi’s coins will stay untouched. Nic Carter, a partner at Castle Island Ventures, said this inactivity is important for crypto culture. Investors should hold their coins for a long time, even during market changes.

The sector that changed finance is now in a paradox. It wants freedom but needs a story about its founder. The search for Nakamoto is interesting, but it raises questions about the future of cryptocurrency. What would happen if the creator were found? Would it help or hurt Bitcoin’s principles?

Discussion prompts

DISCUSSION PROMPTS

  • 1. What do you think about the idea of a decentralized currency?
  • 2. Why do you think people are so interested in Nakamoto's identity?
  • 3. How do you feel about the privacy of cryptocurrency?
  • 4. What are the advantages and disadvantages of using Bitcoin?
  • 5. Do you think Bitcoin will be important in the future? Why or why not?

Key vocabulary

Match each numbered word with the correct lettered definition.

Words

  • 1. document
  • 2. currency
  • 3. identity
  • 4. investigate
  • 5. mystery
  • 6. support
  • 7. protect
  • 8. community
  • 9. value
  • 10. decentralized

Definitions

  • a. the fact of being who or what a person or thing is
  • b. to agree with or help someone or something
  • c. a group of people living in the same place or having a particular characteristic in common
  • d. to keep safe from harm or injury
  • e. a system of money in general use in a particular country
  • f. something that is difficult or impossible to understand or explain
  • g. the importance or worth of something
  • h. a written or printed paper that provides information
  • i. not controlled by a single authority or organization
  • j. to carry out research or study to discover facts

MULTIPLE CHOICE

MULTIPLE CHOICE QUESTIONS

Question 1

What is the title of the document that introduced Bitcoin?

  • a) A) Bitcoin: A New Currency
  • b) B) Bitcoin: A Peer-to-Peer Electronic Cash System
  • c) C) Bitcoin: The Future of Money
  • d) D) Bitcoin: A Financial Revolution
Question 2

Who is the creator of Bitcoin?

  • a) A) Adam Back
  • b) B) Satoshi Nakamoto
  • c) C) Craig Wright
  • d) D) Dorian Nakamoto
Question 3

When did Nakamoto mine the first Bitcoin?

  • a) A) January 1, 2008
  • b) B) January 3, 2009
  • c) C) October 31, 2008
  • d) D) January 1, 2010
Question 4

What is one reason people want to find Nakamoto?

  • a) A) To ask him questions
  • b) B) To know his identity
  • c) C) To give him money
  • d) D) To work with him
Question 5

What do many people believe about Bitcoin's creation?

  • a) A) It is from one person
  • b) B) It is from a group of people
  • c) C) It is from a bank
  • d) D) It is from a government

TRUE / FALSE

TRUE / FALSE QUESTIONS

Question 1

The identity of Satoshi Nakamoto is known.

  • True
  • False
Question 2

Adam Back is the CEO of Blockstream.

  • True
  • False
Question 3

Bitcoin is a centralized currency.

  • True
  • False
Question 4

Many journalists have tried to find Nakamoto.

  • True
  • False
Question 5

The value of Bitcoin is always the same.

  • True
  • False

SHORT ANSWER

SHORT ANSWER QUESTIONS

Question 1

What year did Nakamoto disappear from the public eye?

Question 2

What is one reason people support Bitcoin?

Question 3

Who did The New York Times suggest might be Nakamoto?

Question 4

What do many in the Bitcoin community want?

Question 5

What is one important question about Nakamoto?

GRAMMAR EXERCISES

GRAMMAR

Grammar Point: Present Perfect Simple vs. Continuous

Why this point appears in the article: The article discusses the ongoing search for Nakamoto's identity and the history of Bitcoin, which involves actions that started in the past and continue to the present. What learners need to understand: The present perfect simple is used for actions that have been completed at some point in the past but are relevant to the present, while the present perfect continuous emphasizes the duration of an action that started in the past and is still ongoing. Common errors include confusing the two forms, especially when the focus is on the action's duration versus its completion.

Exercises:

Fill in the blank
Complete the sentences with the correct form of the verb in parentheses (present perfect simple or continuous).

  1. Many journalists __________ (try) to discover Nakamoto’s identity for years.
  2. The New York Times __________ (suggest) that Adam Back might be the creator recently.

Error correction
Identify and correct the error in the following sentences.
3. Adam Back has been part of the cypherpunk movement since the 1990s.
4. Many people have wanted to find out who Nakamoto is.

Sentence transformation
Rewrite the sentences using the present perfect continuous form.
5. Investigators have looked at many emails and writings to find connections between Back and Nakamoto.
6. Supporters of Bitcoin have believed that having no central authority protects the system.

Fill in the blank open
Write your own sentences using the present perfect simple or continuous based on the context of the article.
7. Many conspiracy theories __________ (appear) over the years.
8. The search for Nakamoto __________ (raise) important questions about the future of cryptocurrency.

Answer key

KEY VOCABULARY

  • 1. document → h
  • 2. currency → e
  • 3. identity → a
  • 4. investigate → j
  • 5. mystery → f
  • 6. support → b
  • 7. protect → d
  • 8. community → c
  • 9. value → g
  • 10. decentralized → i

MULTIPLE CHOICE

  • 1. B) Bitcoin: A Peer-to-Peer Electronic Cash System
  • 2. B) Satoshi Nakamoto
  • 3. B) January 3, 2009
  • 4. B) To know his identity
  • 5. B) It is from a group of people

TRUE / FALSE

  • 1. False
  • 2. True
  • 3. False
  • 4. True
  • 5. False

SHORT ANSWER QUESTIONS

  • 1. 2011
  • 2. They believe in its privacy and independence.
  • 3. Adam Back
  • 4. They want freedom from outside control.
  • 5. What would happen if he were found?

GRAMMAR EXERCISES

Answer Key:

  1. have been trying — The present perfect continuous is correct here because it emphasizes the ongoing action of trying over the years.
  2. has suggested — The present perfect simple is appropriate as it indicates a completed action relevant to the present.
  3. has been — The correct form should be "has been" to indicate the ongoing nature of being part of the movement since the 1990s.
  4. have wanted — The correct form should be "have wanted" to indicate the ongoing desire to find Nakamoto.
  5. Investigators have been looking at many emails and writings to find connections between Back and Nakamoto. — The present perfect continuous emphasizes the ongoing action of looking.
  6. Supporters of Bitcoin have been believing that having no central authority protects the system. — The present perfect continuous indicates the ongoing belief.
  7. have appeared — The present perfect simple is correct here as it indicates completed actions relevant to the present.
  8. has raised — The present perfect continuous is appropriate here to emphasize the ongoing nature of the search raising questions.

Grammar Point: Reported Statements & Questions (Tense Backshift)

Why this point appears in the article: The article includes various reported statements about Nakamoto and Bitcoin, which require tense backshift when transforming direct speech into reported speech. What learners need to understand: When reporting statements, the verb tense often shifts back one tense (e.g., present simple to past simple). Common errors include failing to change the tense or incorrectly changing it when the reporting verb is in the present.

Exercises:

Fill in the blank
Complete the sentences by changing the direct speech into reported speech.

  1. Adam Back said, “I am not Satoshi.” → Adam Back said that he __________ (not be) Satoshi.
  2. The New Yorker mentioned, “Michael Clear is a student from Dublin.” → The New Yorker mentioned that Michael Clear __________ (be) a student from Dublin.

Error correction
Identify and correct the error in the following sentences.
3. Newsweek claimed that Dorian Nakamoto was the creator.
4. Craig Wright says he is Nakamoto.

Sentence transformation
Transform the following direct questions into reported questions.
5. “Who is Nakamoto?” asked many people. → Many people asked who __________ (be) Nakamoto.
6. “Why did he disappear?” the journalist wondered. → The journalist wondered why __________ (he disappear).

Matching
Match the direct speech with the correct reported speech.
7. “I created Bitcoin,” said Nakamoto.
8. “We want a face,” said Román González.
a. Román González said that they wanted a face.
b. Nakamoto said that he had created Bitcoin.

Answer Key:

  1. was not — The verb tense shifts back from present to past.
  2. was — The verb tense shifts back from present to past.
  3. No correction needed — The sentence is already in the correct form.
  4. Craig Wright said he was Nakamoto. — The verb tense shifts back from present to past.
  5. was — The verb tense shifts back from present to past.
  6. he had disappeared — The verb tense shifts back from past to past perfect.
  7. b — The correct transformation shifts the verb tense from past to past perfect.
  8. a — The correct transformation shifts the verb tense from present to past.

Grammar Point: Zero and First Conditional

Why this point appears in the article: The article discusses hypothetical situations related to Bitcoin's creator and the implications of finding Nakamoto, which can be expressed using conditionals. What learners need to understand: The zero conditional is used for general truths or facts, while the first conditional is used for real and possible future situations. Common errors include mixing the two forms or using incorrect verb tenses.

Exercises:

Fill in the blank
Complete the sentences using the correct form of the verbs in parentheses (zero or first conditional).

  1. If Nakamoto __________ (be) found, it could change the market.
  2. If Bitcoin __________ (have) a known creator, it would not be decentralized.

Error correction
Identify and correct the error in the following sentences.
3. If you find Nakamoto, it changes the principles of Bitcoin.
4. If the creator is known, it will help Bitcoin’s principles.

Sentence transformation
Transform the sentences into the first conditional.
5. If people believe in Bitcoin, it stays valuable. → If people __________ (believe) in Bitcoin, it __________ (stay) valuable.
6. If there is a central authority, Bitcoin loses its appeal. → If there __________ (be) a central authority, Bitcoin __________ (lose) its appeal.

Short guided paragraph
Fill in the gaps with the correct form of the verbs in parentheses (zero or first conditional).
7. If the identity of Nakamoto __________ (be) revealed, many people __________ (want) to know more about him.
8. If Bitcoin __________ (continue) to grow, it __________ (become) a major financial asset.

Answer Key:

  1. is — The first conditional is correct here as it refers to a possible future situation.
  2. has — The first conditional is appropriate as it refers to a possible future outcome.
  3. If you find Nakamoto, it will change the principles of Bitcoin. — The verb tense should be future to indicate a possible outcome.
  4. If the creator is known, it will change Bitcoin’s principles. — The verb tense should be future to indicate a possible outcome.
  5. believe; will stay — The first conditional indicates a real possibility in the future.
  6. is; will lose — The first conditional indicates a real possibility in the future.
  7. is; will want — The first conditional indicates a real possibility in the future.
  8. continues; will become — The first conditional indicates a real possibility in the future.

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