Would a Perfect Copy Still Be You? | Hibiscus Teach Academic

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A machine makes an exact copy of you while you remain alive. The copy remembers agreeing to the procedure. Which of you, if either, should say “It worked, I survived”? Defend an initial answer without solving every detail.

The problem of staying the same

Watch for: Which kinds of change make identity difficult to define?

Academic Vocabulary

Read the meanings and examples before watching.

personal identity

What makes a person the same individual across time.

a criterion of personal identity

Our rule for personal identity must explain change as well as continuity.

continuity

An ongoing connection between earlier and later states.

psychological continuity

Continuity of memory seems important, but it may not settle every case.

qualitative similarity

Resemblance in properties rather than being one and the same thing.

exact qualitative similarity

Two identical keys have qualitative similarity without being one key.

thought experiment

An imagined case used to test an idea or principle.

test a thought experiment

The thought experiment removes practical obstacles so we can examine the principle.

Original source

Who am I? A philosophical inquiry · TED-Ed / Amy Adkins · Source and credit

Clip A quiz: 6 questions

Choose one answer for each question, then check and read the feedback.

1. The changing ship is used to investigate…what makes something remain the same.how accurately an object can be restored.why older objects are more valuable.

2. Replacing the ship’s parts creates tension between…continuity and original material.physical size and carrying capacity.ownership and insurance value.

3. Reassembling discarded parts would make the puzzle harder because…the original ship would necessarily be destroyed.both ships would have different names.two objects could support rival identity claims.

4. Applying the puzzle to people invites us to ask…which changes are compatible with remaining ourselves.which people have the most reliable memories.whether a person can avoid every physical change.

5. A proposed identity criterion must explain…why appearances are the best evidence in every case.why everyday names should be abandoned.why some changes preserve identity and others might not.

6. The philosophical value of this example is to…supply an experimental measurement of consciousness.demonstrate a practical method of copying people.expose tensions in apparently obvious answers.

Grammar in a minuteC1–C2 · Grant a possibility without conceding the point

Even if introduces a hypothetical concession; even though presents the conceded point as a fact.

Even if the copy remembers my childhood, that would not settle whether it is me.

Original practice

You say: Grant one feature of a copy, then identify what remains unresolved.

Useful English

Original practice. Say your response before opening a model.

That depends on what we mean by…

Clarify a disputed term.

You say: Respond to “The copy is obviously the same person.”

One possible response

That depends on what we mean by the same person: identical characteristics or one continuing individual?

Your criterion would also imply that…

Test a principle against another case.

You say: A partner says identity depends entirely on appearance. Challenge the rule.

One possible response

Your criterion would also imply that a dramatic change in appearance creates a different person. I would hesitate to accept that.

Critical Thinking: 3 questions

Choose one question, then follow up, challenge and revise. Use the others for another angle.

Which change could you accept while still calling someone the same person: a new body, lost memories or a reversed personality?
Help me start
Choose a criterion before ranking the cases.
One possible response
I would initially favour continuity of experience, but severe memory loss shows that a memory-only rule may exclude people we still recognise.
Take it further: Which case puts the greatest pressure on your rule?
C2 challenge
Distinguish a practical recognition rule from a metaphysical claim.
Would you keep the restored ship or the ship made from its old parts in a museum labelled “the original”?
Help me start
Separate authenticity, continuity and usefulness.
One possible response
I might exhibit both and state the criterion behind each label. A museum decision need not solve numerical identity.
Take it further: Is that honest clarification or avoiding a decision?
C2 challenge
Defend one institutional decision while leaving the philosophical dispute open.
Does a person’s own conviction settle who they are?
Help me start
Ask what sincere first-person testimony can establish.
One possible response
Sincerity establishes how the person experiences the case, but two conflicting sincere claims still need interpretation.
Take it further: What evidence should outweigh such a claim, if any?
C2 challenge
Avoid treating subjective experience as either infallible or irrelevant.

A mind beyond its original brain

Watch for: Which obstacles concern technology, and which concern the meaning of survival?

Original source

How close are we to uploading our minds? · TED-Ed / Michael S. A. Graziano · Source and credit

Clip B quiz: 6 questions

Choose one answer for each question, then check and read the feedback.

1. The proposed upload would involve…sending an unchanged biological brain through a cable.storing only a list of someone’s favourite activities.reproducing relevant brain processes computationally.

2. Why is mapping a brain an important difficulty?Only its overall weight needs to be measured.Its relevant structure and activity are extremely complex.Digital systems cannot store any biological information.

3. Why could the scanning and uploading process produce a ruined version of a mind?A simulated environment would necessarily reject every avatar.The process might fail to capture all the necessary information accurately.The source person would have to choose a new name.

4. The video treats uploading primarily as…a proven way to preserve personal identity.a proposed possibility facing unresolved challenges.a routine service already used by patients.

5. The idea of using a different physical medium assumes that…a new medium would automatically improve morality.the source person would have to forget everything.relevant mental functioning might be reproducible there.

6. Why does the speaker separate whether we could upload minds from whether we should?Technical feasibility would not settle access, rights or possible abuse.Technical progress automatically answers every ethical question.The video says all uploaded minds would receive identical rights.

Grammar in a minuteC1–C2 · Counterfactual consequences

If + past form, would + base verb explores an imagined present or future, not a settled prediction.

If two copies existed, each would remember being the original.

Original practice

You say: Imagine one consequence of a second copy becoming conscious.

Useful English

Original practice. Say your response before opening a model.

That would establish resemblance, but not necessarily…

Limit an inference.

You say: A copy answers every personal question correctly. Explain the limit.

One possible response

That would establish resemblance, but not necessarily that the original person’s experience had continued.

I would revise my position if…

State a meaningful condition for revision.

You say: Explain what could change your view about an upload.

One possible response

I would revise my position if we could explain why a continuous transformation differs from producing a second independent version.

Critical Thinking: 3 questions

Choose one question, then follow up, challenge and revise. Use the others for another angle.

Would you accept a procedure that guarantees a happy copy but ends your own biological life?
Help me start
Keep the technical guarantee separate from what it guarantees about you.
One possible response
I could value the copy’s life while doubting that I would experience its future. My hesitation concerns survival, not its worth.
Take it further: Would a gradual procedure change your answer?
C2 challenge
Distinguish prudential reasons from claims about numerical identity.
Should a conscious copy inherit the original person’s commitments?
Help me start
Consider obligations separately from ownership.
One possible response
It might deserve independent rights immediately, while responsibility for earlier promises could depend on the relationship and consent.
Take it further: Which commitment is hardest to divide between two versions?
C2 challenge
Develop a defensible practical rule without claiming to solve consciousness.
Which evidence would distinguish a conscious simulation from a very convincing imitation?
Help me start
Identify whether your test assumes its conclusion.
One possible response
A behavioural test could support an inference, but it may not settle whether an inner experience exists.
Take it further: Do we demand the same evidence from other humans?
C2 challenge
Apply your evidential standard consistently, then acknowledge its limits.

Mastery: use your English

Mastery: 6 questions

Original cases. Choose, then explain one answer aloud.

1. Two perfectly matching coins illustrate…numerical identity without any physical resemblance.that material objects cannot have stable identities.qualitative similarity without numerical identity.

2. A memory-based rule struggles with two equally accurate copies because…one copy must necessarily be lying.the same memories support two rival claims.remembering events establishes physical continuity.

3. “I dislike the copy, therefore it is not me” confuses…a personal reaction with an identity criterion.a verified fact with an exact quotation.a technical measurement with a probability estimate.

4. Which objection engages a criterion rather than its speaker?Your rule counts both independent copies as one individual.Only a sentimental person could prefer your rule.I find your conclusion unsettling, so the rule fails.

5. A sensible practical policy could…treat uncertainty as proof that neither copy has interests.recognise both copies’ interests while leaving metaphysics unresolved.delay every protection until philosophers reach unanimity.

6. Which statement makes the narrowest justified claim?This test shows matching responses, not continued experience.This test proves the copy is conscious and identical.This test is worthless because it leaves a question open.

Grammar masteryC1–C2 · Formal hypothetical inversion

Were + subject + to-infinitive can replace an if-clause in formal hypothetical reasoning.

Were the copies to disagree, our criterion would face a harder test.

Original practice

You say: Reformulate one imagined complication without beginning with if.

Critical Thinking: Two claimants, one history

Which criterion survived your strongest objection?
What can a practical decision leave unresolved?

Fictional case: an original and an independently conscious copy both request recognition as the person who made an earlier promise. Agree a practical response without pretending to settle every identity question.

Open only your own role. Share its information by speaking, without showing the card.

Private Role A

Continuity advocate: both remember the promise sincerely. You think psychological connections matter more than original material. Acknowledge what your rule struggles to explain.

Private Role B

Independence advocate: there are now two centres of experience. You want fair treatment for both, but you reject calling two independently acting people one individual.

State a criterion in 30 seconds each.
Test the other criterion with one counterexample.
Agree how to handle the promise and acknowledge one unresolved question.
Respond to the new information and give a joint 30-second judgement.

What a strong response does

Separate resemblance from identity.
Restate the opposing criterion fairly.
Make a concession.
Explain why your practical decision does not prove your metaphysical view.

Help me start

“For practical purposes we could…, without claiming that…”

One possible exchange

A: Their shared memories give both a connection to the promise.

B: I accept that connection, but neither should control the other’s future.

A: Then recognition need not mean they are numerically one person.

B: Agreed. We should negotiate responsibility rather than simply duplicate it.

New information: try again

New information: the copy now remembers an important event that the original never experienced. Explain whether your rule changes, and why.

On my own

Take both roles aloud. Pause between them, challenge your first answer and end with a decision that addresses the strongest objection.

One last thought

Complete aloud: “I used to treat ___ as sufficient for identity; now I would also ask ___.”

One-minute takeaway

Choose one answer. Then explain your choice in one sentence aloud.

Start talking

The problem of staying the same

Useful English

A mind beyond its original brain

Useful English

Mastery: use your English

Critical Thinking: Two claimants, one history

One last thought

One-minute takeaway

Practice audio