Program about the birth of the universe

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    Program Universe
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Discussion Overview

The discussion revolves around the birth of the universe, specifically addressing the implications of the second law of thermodynamics in the context of the universe's origin and the matter-antimatter asymmetry observed in cosmology. Participants explore theoretical concepts and raise questions about the nature of existence prior to the universe.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant questions whether the creation of the universe from "nothing" violates the second law of thermodynamics, noting that time is a property of the universe and there is no "before" its birth.
  • Another participant suggests that the matter-antimatter problem is not about unequal amounts being created, but rather about the asymmetry in decay rates of particles and their antiparticles, leading to a surplus of matter after annihilation events.
  • A later reply mentions the need for sources to support claims about particle-antiparticle interactions and their implications for the universe's matter content.
  • One participant humorously references a personal interpretation of a "second law," indicating a playful approach to the discussion.
  • Another participant notes that the concept of a deity is often excused from adhering to physical laws, implying a philosophical perspective on the discussion.

Areas of Agreement / Disagreement

Participants express differing views on the implications of the second law of thermodynamics and the nature of matter-antimatter creation, indicating that multiple competing perspectives remain without consensus.

Contextual Notes

Participants do not fully resolve the implications of the second law in relation to the universe's origin, nor do they reach a definitive understanding of the matter-antimatter asymmetry, leaving several assumptions and definitions open to interpretation.

cen2y
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Hmm... I watched this program about the birth of the universe.
If there was nothing before and the universe orgiginates from that, doesn't that violate the 2nd law? They also said that more matter than anti-matter was created. Since no matter was before and matter/anti-matter is created and destroyed in pairs, how can this be?

Argh, this was supposed to go into a topic. How can I delete this message?
 
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Only a mentor can.

In the mean time, what's "2nd law"? Whose?
 
what's "2nd law"? Whose?

Mine: "Thou shalt not steal unless there's no one around who can see it"
 


Originally posted by cen2y
Hmm... I watched this program about the birth of the universe.
If there was nothing before and the universe orgiginates from that, doesn't that violate the 2nd law?
Since time is a property of the universe, there is no "before" the universe was born.
 


Originally posted by cen2y
Hmm... I watched this program about the birth of the universe.
If there was nothing before and the universe orgiginates from that, doesn't that violate the 2nd law? They also said that more matter than anti-matter was created. Since no matter was before and matter/anti-matter is created and destroyed in pairs, how can this be?

Argh, this was supposed to go into a topic. How can I delete this message?

The matter/antimatter problem is not that unequal amounts were made (impossible I think) but that there is an asymmetry between the decay rates of one particular particle and its antiparticle. This difference meant that for every billion particle-antiparticle anhilations, one matter particle was left behind. As the Universe quickly cooled, no more of these particle/antiparticle pairs were made, so the matter remaining was 'frozen' into the Universe. Good job too!
I'd like to find a source for what I've written above as I read all about this once, but haven't seen anything on it since.. Any good links anyone?
(I hope it is not all rubbish!)
 


Originally posted by cen2y
Hmm... I watched this program about the birth of the universe.
If there was nothing before and the universe orgiginates from that, doesn't that violate the 2nd law?

We generally excuse god for disregarding this, or any other law.
 

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