Theoretical Physicist Brian Greene Explains Time in 5 Levels of Difficulty | WIRED

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Published 2023-04-19
Time: the most familiar, and most mysterious quality of the physical universe. Theoretical physicist Brian Greene, PhD, has been challenged to explain the nature of time to 5 different people; a child, a teen, a college student, a grad student, and an expert.

Director: Maya Dangerfield
Producer: Wendi Jonassen
Field Producer: Katherine Wzorek
Director of Photography: Charlie Jordan
Editor: Shandor Garrison
Host: Brian Greene
Level 1: Kayla Martini
Level 2: Maria Guseva
Level 3: Zain Kamal
Level 4: Alexander Novara
Level 5: Massimo Porrati

Line Producer: Joseph Buscemi
Associate Producer: Paul Gulyas
Production Manager: Eric Martinez
Production Coordinator: Fernando Davila
Casting Producer: Nick Sawyer

Camera Operator: Britney Berger
Gaffer: Gautam Kadian
Audio: Brett Van Deusen
Production Assistant: Nicole Gaitan
Hair/Makeup Artist: Yev Write-Mason

Post Production Supervisor: Alexa Deutsch
Post Production Coordinator: Ian Bryant
Supervising Editor: Doug Larsen
Assistant Editor: Andy Morell

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All Comments (21)
  • @Attila_Beregi
    what i love about this is that it starts with mathematics with the kids but by the end it gradually turns into a philosophical discussion
  • @TRex-fu7bt
    Love how he started with the child by asking how old they were. Just instantly relevant and on the child’s level.
  • @kate_meara
    I’m constantly in awe of people like Massimo Porrati. Imagine being so intelligent you can communicate such high concept thoughts in your second language.
  • “How remarkable is it that we have this brief moment that allows us to think, feel, love, explore and illuminate. How wonderful is that.” Made me sob
  • @LurkerPatrol5
    I'm a professional astronomer, have a bachelors in astrophysics and a masters in astronomy. He explained the derivation of the time difference between moving and stationary clocks better than any of my textbooks and professors have...
  • @khairm
    This ability to communicate on a single topic at all these levels is like watching art
  • I felt like a kid watching this guy explain things. learned a lot in a short amount of "time" Well Done!
  • @owenl3929
    So lucky to have had Dr. Greene as my professor, such a great lecturer and educator. I recently asked him a question about relativity, and his answer was so well articulated despite being almost instant. I’m really glad to see him featured in this series!
  • @durpkied
    I was surprised how simple the conversation in the fifth level was. Super easy to follow.
  • @6streak
    I'm aspiring to be a theoretical physicist and watching this really has broadened my knowledge more. He's amazing at explaining things.
  • I was totally lost in the "teenager" explanation but bits and pieces with the adults made total sense to me
  • @rbr1170
    The grad student could play Einstein in his younger years.
  • @bdev1444
    I like how he explains to the nine year old: if you travel in a spaceship around the world and come back, everyone else will be dead. His intense look almost make it looks like a death threat.
  • @kevinm8865
    If I had a teacher like him, I believe I would have enjoyed the sciences more and pursued it further.
  • "It might be a brief flicker on a single moat of dust floating in a cosmic eternity. But it's everything." Such a great way to put it.
  • @carolchen5511
    As a student in Brian Greene’s Origins and Meanings of the Universe at Columbia, every lecture was existentialist like that - I sobbed in his last lecture
  • @HolyParsival
    I love how when he gets to the expert it becomes more of a conversation then a teaching
  • @userhFDR7PBw
    What smart kids though! I pulled it off but it was a challenge to really follow even at level 2 -that's how rusty the brain gets as you get older. Very endearing to see Mr Greene actively trying to understand someone else in the end, for a change. Wonderful video, than you!