beggar world doctor

Once upon a time, human beings "believed" the above three traversal modes, thinking that time travel was fucking feasible, but one day someone suddenly proposed a "grandmother paradox", so the above three traversal modes fell into the trap of human beings. in doubt.

The grandmother paradox is also called the grandmother paradox, that is to say, a person travels to the time period when the grandmother exists but the mother is not born, and kills the grandmother with a knife.If grandma is dead, then mother must not exist, and if mother does not exist, this time traveler must not exist either.Since you don't exist, how can you travel to the past?

Hey, this paradox sounds very reasonable at first glance, and it is difficult to refute it, including Professor Einstein and Hawking King, who tried their best to think of a way to refute it.

The little grandmother paradoxes have plagued mankind for many years, and to some extent destroyed the theory of time travel established by Einstein.Oh, it's nothing.

Human beings look forward to time travel, and they want to try it even in their dreams. If time travel cannot be realized in theory, many people will cry to death!

The nasty grandmother paradox is a "stumbling block" in front of human time travel, and many scientists are trying to overthrow it.Not to mention, after much deliberation, the scientists really came up with the magic weapon to solve the grandmother's paradox, the theory of parallel universes.

Einstein's time travel is a time travel in an infinite universe, that is, the universe in which we "subjectively" live. He himself never doubted that there is only one "universe" in the universe.Einstein was right in thinking so, and no one thinks he is wrong until now. However, in order to "crack" the grandmother paradox of time travel, scientists today have improved his "view of the universe", or put forward a point hypothesis.

The Big Bang theory holds that the universe was originally a point, which includes all the matter in the entire universe today, with infinitesimal volume, infinite density, and infinite mass.If we regard the initial point of the universe as a super super super giant black hole, it is also possible.We don't know how the initial singularity of the universe was formed and how it works, but we know that the universe centered on this singularity does not matter time or space, and everything is nothingness.

Suddenly "one day", this singularity that included all matter in the universe exploded for unknown reasons.

We can vaguely imagine the scene of the Big Bang: in the dark night sky with nothing, suddenly a lightning bolt with extremely high brightness across the sky, in an instant, thunder and lightning, the sky collapsed, and all kinds of messy matter scattered at the speed of light out,……

N years after the Big Bang, our current universe was formed, with n stars, n planets, and n nebulae...

So, will something interesting happen during the Big Bang?

Some people regard the Big Bang as blowing bubbles, yes, it is blowing bubbles.Use a bubble stick to dip a little bubble liquid, puff up your cheeks, and after a while, there will be round bubbles all over the sky, big and small, really beautiful.When enough bubbles are blown out, there will inevitably be some surprisingly similar bubbles, with the same volume, the same quality, and the same shape. . . .For these extremely similar bubbles, we named them "parallel bubbles".

In a way, blowing bubbles is similar to the Big Bang.Blowing bubbles will blow out more than n bubbles. Wouldn't the Big Bang also explode and produce n more "small universes"?

For a better understanding, we can understand the nested small universe in the large universe as a "galaxy group".It's just that this "galaxy group" is big enough to include the Milky Way, the Andromeda Galaxy, ..., and the human horizon can never see its edge.However, if the "Interstellar Group" and the "Interstellar Group" are in a state of "hearing the voices of chickens and dogs, they will never communicate with each other".

When the number of small universes is large enough, astronomically large, tens of millions, billions of millions, we can draw a very interesting conclusion: there are many surprisingly similar "small universes" in the universe.

Someone made an analogy, using thousands of characters in our Chinese to combine them randomly, as long as the number of combinations is enough, there will always be a "Dream of Red Mansions" once combined.Therefore, the infinitely many small universes formed by the big bang will definitely have similarities with each other, and many of them are surprisingly similar to the small universes that exist on our earth, such as the earth, the solar system, the Milky Way, etc. , but there are some differences in time, that is, the time system is different.These surprisingly similar small universes with different time systems are called parallel universes.

The parallel world is only different in the time system, and other places are similar.In our small universe, history has become history and is irreversible. For example, Li Erdan's father, Li Xinglin, died, and it is impossible to revive him.But in another parallel universe, our history may have just begun in theirs.There, Li Xinglin was running away with Long Xiner.Similarly, our present may also be the existence of history in other universes. There is no Li Erdan because he has already died.

If parallel universes really exist, then the "grandmother paradox" does not exist in time travel, because there are infinitely many parallel universes, and there are infinitely many grandmothers, even if one is killed, there will still be more.

So, is the metaphysical theory of parallel universes true or false?Do parallel universes really exist?

Well, God knows, although some scientists seem to have found evidence of the existence of parallel universes through the study of "cosmic microwave background radiation", and even boasted that there are one billion parallel universes in Shenma, but it is a bit ridiculous. Many, because there are not many people who can understand.For example, Professor Wang Zhi does not agree with the idea of ​​parallel universes.

Erdan half understood, and suddenly said: "Professor Wang, I didn't understand what you said. Now tell me, is time travel good? If so So, can I go wherever I want through time travel? I can go to any point in time I want to go?"

Professor Wang Zhi laughed, "You really want to know?"

Erdan nodded straight, "Aren't you talking nonsense? Of course I want to experience it once. If a person can experience time travel once in his life, then this life is worth it!"

"I can't give you the answer now, because I'm also confused. I'm ashamed to say that I have studied time travel for so long, but I haven't researched a reason." Professor Wang Zhi smiled wryly, and then changed the topic, "Will If you want to know what time travel is like, you have to experience it yourself.”

"Uh, where can I experience it?" Erdan.

"Lop Nur has big ears and eyes and a bottomless abyss."

……