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The Quantum Conspiracy: What Popularizers of QM Don't Want You to Know

Google TechTalks · talk · Watch on YouTube

Quantum physicsScientific method & science communication

What it is

Ron Garret's Google Tech Talk argues that quantum mechanics is no harder to understand than relativity and that popular accounts wrongly rely on the Copenhagen interpretation. He presents measurement as entanglement and explains phenomena like the quantum eraser.

Why Hacker News recommends it

HN commenters repeatedly recommend it as the talk that finally made quantum mechanics click, especially for programmers.

  • 11 people recommended it
  • 15 different months
  • 4 strong recommendations
  • first 2012, last 2025

What HN commenters said

  1. “if you want to really understand QM, there's this”

    Video to really understand QM

    lisper, 2013-01 · Strong recommendation · in “Quantum physics made relatively simple: Three lectures by Hans Bethe”

  2. “Even if you don't know any QM, just basic algebra and calculus, it's really approachable.”

    Clear, approachable explanation of spooky quantum phenomena via entanglement

    cromwellian, 2014-04 · Strong recommendation · in “Quantum Entanglement Drives the Arrow of Time”

  3. “It really clarified some things for me.”

    Clarified quantum concepts for the commenter

    oceanghost, 2019-11 · Strong recommendation · in “How Quantum Teleportation Works”

  4. “This is the video that finally made it click for me[1].”

    Explains what is and isn't a measurement in detail

    raphlinus, 2022-03 · Strong recommendation · in “A wave function does not collapse upon detection?”

  5. “watch his google talk about it”

    Ron Garret's talk arguing against the Copenhagen interpretation

    replax, 2012-02 · Recommendation · in “A Schrödinger cat with eight lives: quantum entanglement of eight photons”

  6. “This Google Talk from last year provides an argument and interpretation of this that's fairly understandable with a programmer's mindset”

    Understandable argument for programmers

    mtrimpe, 2012-10 · Recommendation · in “Quantum entanglement shows that reality can't be local”

  7. “Anyone interested in this can find an excellent lecture here”

    Excellent lecture on the topic

    dools, 2015-04 · Recommendation · in “Is the Universe a Hologram?”

  8. “But you don't need to listen to me, check this out”

    Explains why measuring one entangled particle does not affect the other

    phkahler, 2017-01 · Recommendation · in “What If Time Really Exists? (2008)”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: quantum mechanics, entanglement, measurement, copenhagen interpretation, quantum eraser

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