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What even is Quantum Computing?!

2025-10-27 Science & Technology
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ThePrimeTime
ThePrimeTime
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Demystifying Quantum Computing Breakthroughs: Qubits, Fragility, and Current Realities

Gain essential clarity on the difference between quantum computing hype and reality, especially following recent announcements regarding 105-qubit systems and verifiable algorithms.

Short Summary

  • Classical computers rely on binary bits (0 or 1), while quantum computers use qubits existing in superposition (a probability distribution of states).
  • Two-qubit systems can represent multiple states simultaneously through a process called entanglement, where states are intrinsically linked.
  • Current quantum systems are extremely fragile, requiring near absolute zero temperatures to combat decoherence (collapsing the quantum state).
  • While powerful algorithms like Shor's exist, practical, general-purpose quantum computers remain far off; most current applications are highly specialized research problems.

This discussion breaks down fundamental quantum concepts—superposition, entanglement, and interference—using analogies to explain why these machines are both promising and incredibly difficult to build reliably. We examine Google’s recent "quantum echoes" demonstration and evaluate the immediate, real-world impact of achieving quantum supremacy for common problems like password cracking or drug discovery.

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Description

https://twitch.tv/ThePrimeagen - I Stream on Twitch https://twitter.com/terminaldotshop - Want to order coffee over SSH? ssh terminal.shop Become Backend Dev: https://boot.dev/prime (plus i make courses for them) This is also the best way to support me is to support yourself becoming a better backend engineer. Great News? Want me to research and create video????: https://www.reddit.com/r/ThePrimeagen Kinesis Advantage 360: https://bit.ly/Prime-Kinesis 00:00:00 - Intro 00:02:46 - Intro to Quantum, qbits and superpositions 00:07:20 - Entanglement 00:10:52 - Shor's algorithm 00:12:07 - Inteference and decoherence 00:14:31 - The fragility question 00:17:00 - heisenbergs uncertainty principle 00:18:03 - off topic 00:20:16 - Magnetic field aim assist 00:22:34 - Quantum Gates & Basis Vectors 00:30:48 - Quantum Algorithyms and passwords 00:37:50 - Uncerainty principle 00:40:15 - What are people planning on using this for 00:42:41 - Willow Chip 00:44:33 - Quantum programming languages 00:48:41 - Willow paper 00:51:02 - Trash notes 00:52:07 - Mapping Proteins and other uses for Quantum Computing 00:55:37 - Quantum Echos 00:58:20 - The future of Quantum computing 01:05:19 - Quantum AI is a lie tell Facebook 01:08:09 - Outro

Top Comments (10)

@user-c2z8m 2025-10-27

You could use this video as training material for teachers to prepare them for teaching physics to a class consisting of students with untreated ADHD.

891 8 replies
@bobersupreme 2025-10-27

I must say, as much as I like the guys sometimes I wish they would make fewer jokes, especially when the guest is speaking. Some topics like beds connected to cloud are easy to joke about, but in this case I'm more interested in what GB has to say. Also props to TJ for doing his research.

739 20 replies
@rusbunnin3992 2025-10-27

Big Respects to GingerBill for being Very Patient

415 3 replies
@GingerGames 2025-10-27

Sorry for the lack of jokes. Damn this took up my brain power to just do some teaching. And around 16 minutes, not reaching absolute zero is both due to entropy (see Nernst Heat Theorem for the Third Law of Thermodynamics, entropy tends to a constant not zero) and Heisenberg's uncertain principle (when measuring the temperature, and see Zero-point energy).

374 46 replies
@cachebags 2025-10-27

I love these guys but they brought mf Ginger Bill in and interrupted him every 5 seconds LOL cmon

234 5 replies
@DkelWasHere 2025-10-27

GB locked in to teaching quantum mechs 101 but he didn't realize the class was a group of squirrel-level attention spans 😂

161 1 replies
@televerket 2025-10-27

3:00 Nothing greater for learning than doing a verbal only presentation of a concept while also interrupting it by an ad spot....

57 8 replies
@Awesomer5696 2025-10-27

the phrase 'dont cast your pearls before swine' comes to mind

35
@Chris-on5bt 2025-10-28

I know this wasn't the most serious podcast, but Ginger Bill's description of quantum effects with two pebbles in a lake really opened up my understanding of quantum. Its the first analogy I could actually intuitively understand. Thanks GB!

15
@ThePrimeTimeagen 2026-03-17

Thanks to Sentry for sponsoring today’s episode! Try it today https://sentry.io/

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