Is Gravity RANDOM Not Quantized?
PBS Space Time

Is Gravity RANDOM Not Quantized?

B1IntermediateNovember 13, 202626 min
  • Science

Check out the Space Time Merch Store https://www.pbsspacetime.com/shop Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime The holy grail of theoretical physics is to find the long-sought theory of quantum gravity. But what if this theory is as mythical as the grail of legend? What if gravity isn’t weirdly quantum at all, but rather … just a bit messy? Or random? So says the postquantum gravity hypothesis of Jonathan Oppenheim. PBS Member Stations rely on viewers like you. To support your local station, go to:http://to.pbs...

Play episode

Opens the player: the full transcript, every word clickable, with translation and flashcards.

Try it: tap any word

Real sentences from the start of this episode. Every word is marked with its level.

Sentence 2 of 12 · 0:05

Hey everyone, we have a brand new product in the merch store, more info at the end of the episode.

.

But what if this theory is as mythical as that grail of legend? What if gravity

Tap a word to see its meaning in your language.

Do you know these words?

8 harder words from this episode. Tap one to see what it means, then mark it.

Mark a few words and we'll tell you how this episode fits your level.

Is this episode right for you?

B1

B1 · Intermediate

Fine if you can follow simple news

A1 17%A2 38%B1 25%B2 19%C1 1%
  • 80% of the words are B1 or easier.
  • 118 words a minute: slow, clear speech.
  • 129 harder words (B2 and up) in the whole episode.

Transcript

The opening of the episode. The whole transcript is in the player.

0:00

Hey everyone, we have a brand new product in the merch store, more info at the end of the episode. The holy grail of theoretical physics is to find the long-sought theory of quantum gravity. But what if this theory is as mythical as that grail of legend? What if gravity isn't weirdly quantum at all, but rather just a bit messy? Or random? So says

0:23

the post-quantum gravity hypothesis of Jonathan Oppenheim. We have two great theories in physics that together appear to explain almost everything. There's general relativity, the theory of space and time and gravity, and the larger scales of the universe.

0:45

And there's quantum mechanics, the theory of atoms, matter, and the smaller scales. These theories are each verified to astonishing precision, and yet seem to contradict each other at the most fundamental level. We've talked about these conflicts in the past and the efforts to resolve them by unifying

That was the opening. The rest of the episode (25 min) is in the player: every word clickable, with translation, saved words and flashcards.

Continue in the player

Automatically generated from the audio. May contain errors. Audio belongs to its publisher and is played from their feed. Rights holders can request removal — copyright & takedown policy