Nothing was wrong with that name until that sitcom from the 2000’s came along and made my In-Laws think they finally understood me.

Video: What’s Wrong With the Big Bang Theory?

By: PBS Space Time

 

Notes: From the CMB we can see that the temperature of the Universe is every direction is very consistent, even among areas of the Universe that are outside each other’s particle horizons. The best current explanation of this is that the Universe must have started out very small so everything had enough time to mix around, before undergoing a rapid phase of massive inflation – going from the size of a subatomic particle to roughly the size of a grain of sand. At that point it switched to expanding at the current rate of expansion we still observe today.

The current limitations of the Big Bang theory do not explain the origin of the Universe. They explain what has happened after that.

Before the Universe was 400,000 years old it was too hot and dense for atoms to exist. Photons would be emitted and instantly absorbed. So it’s impossible for us to see back further in time than this – there’s nothing to see.

At the initial stages of the Big Bang, temperatures were so hot that the Higgs field didn’t exist to give particles mass. (Editorial: Does this help explain why the Universe didn’t just collapse back on itself as a black hole? Without the Higgs field and mass, there wasn’t anything for gravity to operate on). Also, we can actually create these conditions within the Large Hadron Collider.

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