"Quantum entanglement" and the "Big Bang"

 Among quantum mechanics, "quantum entanglement" is also a mysterious and interesting phenomenon. What is this "quantum entanglement"?

"Quantum entanglement" is a very mysterious and important phenomenon in quantum mechanics, which refers to two or more particles in a state that is closely related to each other. These particles have the property that measuring the state of one particle instantly determines the state of the other particle, no matter how far apart they are in space.

🔍 To be more specific:

For example, suppose two electrons are in an entangled state. These two particles each have a state called spin (one of the properties of electrons), and in the case of an entangled pair, they are completely correlated, such that "if one is up, the other is always down."

When you observe one electron and determine that it is "spin up,"

the other electron behaves as if it had been determined to be "spin down" before you observed it.

Even if the two electrons are as far apart as the Earth and the Moon, the results are instantly related.

🤯 Why is it mysterious?

Einstein was skeptical of this phenomenon, calling it a "spooky action at a distance."

In classical physics, some kind of "information transmission" is necessary for objects to affect each other, and it is believed that the speed of information transmission cannot exceed the speed of light.

However, with quantum entanglement, correlations are observed as if information were transmitted instantly.

🧪 In practical terms?

Quantum entanglement is the basis of the following cutting-edge technologies:

Quantum cryptography (communication that cannot be eavesdropped on)

Quantum teleportation (instantaneous transfer of information)

Quantum computers (using superposition and entanglement)

To summarize briefly,

Quantum entanglement = a state in which particles are deeply connected to each other even when they are far apart.

Yes, my assistant AI explained it to me. This assistant is very useful. I look forward to working with her in the future.

But even so, this "quantum entanglement" is amazing. Information is transmitted instantly, regardless of distance. Even if it is hundreds of millions of light years away, it can be transmitted instantly! ? Normally, no information can travel faster than the speed of light. If it's billions of light years away, it should only travel after billions of years. But it travels instantly.

So, no matter how far apart you are, there is a channel that connects you. How is that possible?

I think it's a sign that we, or rather this world, this universe, are one.

"We are one"

I've always said this in a religious sense, but I've been thinking lately that we are actually one physically as well.

You might think, "No, we, the world, and the universe are all completely separate, aren't they?"

That's certainly true from the outside. But there's the Big Bang, right? If you think about it, that's a ridiculous story, and it's said that this infinitely vast universe started from a point smaller than an atom. The other day, I was walking along the bank of a local river, looking out over a local plain, and I remembered the story of the Big Bang, and I tried to imagine this whole landscape being compressed into something smaller than an atom...

There's no way that's possible!

Are physicists sane? What kind of imagination do they have?

And I was thinking, maybe physicists have zero imagination. They just think that since the universe is currently expanding, if you work backwards, the universe will contract and eventually converge to a single point. But because the formulas and equations are like that, if you mechanically apply them, it seems that this entire universe started from a single point smaller than an atom.

So, can you all imagine the Earth shrinking to the size of a baseball? If you can, please actually show me. If you can't even do that, the entire universe starts from a single point smaller than an atom?

It seems that if you do science, ordinary imagination is actually a hindrance. You can't do it without zero imagination. All you have in your head is the formulas.

So far, I've been criticizing physicists, but that doesn't mean I don't believe in the Big Bang. Or rather, no matter how impossible something seems to the imagination, if you solve the equations, I will accept it as true.

So, let's say we reluctantly accept that physicists claim that the universe began from a single point smaller than an atom. What happens then?

"The universe was originally one."

Wouldn't that be the case? If something that was originally one expanded through inflation or whatever and eventually became the universe that is now hundreds of billions of light years long, isn't it still one? Isn't it just that what was one has become bigger? Or perhaps we should say this. Even though the universe expanded and expanded, various substances were born, and it now appears to be separate, behind that appearance, the connections that existed when the universe was one have been maintained and remain connected. Aren't we currently existing with the property of being one?

And I think it's interesting to think that this property, this connection that makes us one, is expressed as a material phenomenon called "quantum entanglement."

No matter how far apart we are, even if it's hundreds of millions of light years, the fact that quantum information can be transmitted instantly is a sign of our unity.

There's no point in bringing religious imagination into the world of physics, but I think it would be great if we could say, physically as well, that 

"We are one."

Guided by love and mercy

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