26 Comments

1. 

   @adams0020

   August 4, 2026 at 5:21 pm

   The editor sure had fun labeling the timestamps lol

   Reply
2. 

   @Sawyer-x9n

   August 4, 2026 at 5:22 pm

   If Brian Greene ever sees this, I just want to say thank you.

   Earlier this year, I became interested in physics. I read many books on the subject, and then I discovered Brian Greene and started watching interviews with some of the world’s greatest physicists.

   I’ve learned so much thanks to the incredible value and knowledge you’ve shared with the public.

   Thank you so much. ..

   Reply
   • 

     @KhaoticComrade

     August 4, 2026 at 5:57 pm

     bot

     Reply
3. 

   @Koooo4

   August 4, 2026 at 5:27 pm

   12:19 You can tell by his answer that he has personally invested a lot of his career into string theory and is very desperate for it to not be a waste of time lol

   Reply
4. 

   @martinth972

   August 4, 2026 at 5:51 pm

   Brilliant scientist but his answers have all been so dumbed down this video is essentially misinformation and nonsense.

   Reply
5. 

   @pnjodaro

   August 4, 2026 at 5:55 pm

   Wired, PLEASE make more videos with Experts in different fields. I absolutely love it and I don’t wanna run out of content 😭 Thanks for doing this

   Reply
6. 

   @k_a_bizzle

   August 4, 2026 at 5:58 pm

   Seeing Brian Greene do the infamous pencil-through-paper explanation is now checked off my bucket list.

   Reply
7. 

   @obaz91

   August 4, 2026 at 6:26 pm

   MY KING. MY MUSE. MY CRUSH. MY PRECIOUS LORD. BRAIN GREENE. <3

   Reply
8. 

   @Little_moz

   August 4, 2026 at 6:30 pm

   Wow, I just realised how time dilation would sound to people who don’t understand what it is 😂

   Reply
9. 

   @LoveOPugsley

   August 4, 2026 at 6:33 pm

   You can think about Heisenberg’s Uncertainty Principle much like the special order menu that you find in certain Chinese restaurants where you have dishes in column A and other dishes in column B, and if you order the first dish in column A you can’t order the corresponding dish in column B; that’s sort of like the Uncertainty Principle.

   Reply
10. 

    @uncletiggermclaren7592

    August 4, 2026 at 6:43 pm

    Physicists explaining *Block Theory* : “To start with, Just give me these ten assumptions as if they are axiomatic. I can’t prove them, but I assert them. OK ?. Ready ? THERE, I proved it !. Everything is predetermined !.”

    Reply
11. 

    @keaton718

    August 4, 2026 at 6:53 pm

    10:40 it’s important to note with the double slit experiment, it may be an electron before it’s fired and when it lands, but it travels as a wave, and in fact an electron *is* a wave so the electron waiting to be fired is a localised wave and when it’s fired through the slits it is a spread out wave, so with a spread out wave fired at two slits you should expect an interference pattern. With all the variations on the experiment, like the 2000 atom sized molecule where the interference pattern is also seen, that molecule is also a “matter-wave” in transit. Y’all are all being lied to about what this experiment is meant to show and some pop physicists seem happy to let you believe the lie.

    Reply
12. 

    @BalloonMerchant

    August 4, 2026 at 7:02 pm

    Assus Reamus made me laugh 3:26

    Reply
13. 

    @seeitfixit

    August 4, 2026 at 7:05 pm

    You guys got the wrong Brian.

    Reply
14. 

    @timz9862

    August 4, 2026 at 7:22 pm

    It’s amazing to me that people like Isaac Newton, who lived hundreds of years ago, could make calculations and predictions about things that we still know our true today and they didn’t have any kind of computers. I think computers are actually making people dumber.

    Reply
15. 

    @TheSkinnyZ

    August 4, 2026 at 7:54 pm

    Omfg! 2:09 I asked more or less this exact same question to my physics teacher back in the day and ever since I occasionally think about the possibility of falling through my bed while sleeping. 😂

    Reply
16. 

    @TimBee100

    August 4, 2026 at 8:01 pm

    Science fiction.

    Reply
17. 

    @ronaldocost4

    August 4, 2026 at 8:18 pm

    I didn’t understand anything, so, according to science, I’m on the right path.

    Reply
18. 

    @TimBee100

    August 4, 2026 at 8:22 pm

    Extraordinary claims require extraordinary evidence.

    Reply
19. 

    @Wowreally42

    August 4, 2026 at 8:26 pm

    Can we get a 4 hour long part two? Please and thank you

    Reply
20. 

    @TheOutdoorVoice

    August 4, 2026 at 8:26 pm

    My theory combines aspects of particle theory and string theory. I believe an electron produces ripples that radiate outward through spacetime, similar to waves spreading across a pond. The frequency of these spacetime ripples may determine the amount of mass the particle can possess. One way I think this idea might be demonstrated is through the double-slit experiment. When a single electron is fired toward two slits, the ripples surrounding the electron could pass through both openings and interfere with one another on the opposite side. The electron itself would then follow the resulting spacetime geometry created by that interference.

    Reply
21. 

    @OrnellaRodriguez

    August 4, 2026 at 8:38 pm

    <3

    Reply
22. 

    @alef_19

    August 4, 2026 at 8:45 pm

    Te amo Brian ❤

    Reply
23. 

    @lowbudgetmic

    August 4, 2026 at 8:46 pm

    Hard science 🧬 😮😮😮

    Reply
24. 

    @maxbrilliant72

    August 4, 2026 at 8:53 pm

    I didn’t listen to what he was saying. I just talked to ChatGPT the whole time.

    Reply
25. 

    @fretzl

    August 4, 2026 at 9:19 pm

    physicists’ interpretations of schrodinger’s cat are so much more varied than how he presents it here as an undisputed fact. like literally just look at the wikipedia page. that felt so poorly answered

    Reply