"What kind of destruction will cause geographical change? Nuclear bomb attack? Super earthquakes? Su Yu looked puzzled, Shu Han shook his head and said: "It's not clear, according to my memories in the nursing home, people in the last days think that the age of madrigals, that is, the end of modern society, seems to be related to some gods, suddenly darkness covers the earth, everything is erased from the earth, people are abandoned by God, in short, it is a religious flavor, there is no practical description."

But there are some clues in this, first of all, I don't think it should be a super earthquake, after all, the signal tower is still there, there is no reason for the artificial lake to be shaken out of the water, and the signal tower can still stand, then this is too hardcore, as for the nuclear bomb attack, it is very likely, in the end of the world, there are many creatures that are not in this era, and even some intelligent creatures were born in it.

And I've heard that there are humanoids called birdmen by the people of Dark, and according to the people of Dark, those things used to seem to be humans, but then they were contaminated into their current appearance for some reason, and I think it may have something to do with nuclear bombs.

After all, it's only been two or three hundred years, so it's impossible for species to evolve greatly, right?

I remember that many American science fiction films don't talk about the radioactive elements in the nuclear bomb attack that can cause some organisms to mutate in the process of evolution, and if the yield is large, it is not impossible to cause drastic changes in the life on the earth.

But there is also a problem in this, that is, if it is really a nuclear threat, then the release of nuclear clouds will cover the whole earth, I read a paper, which said that if the world's nuclear bombs are detonated, the formation of nuclear clouds can block the entire earth's atmosphere for hundreds of years.

And I am in the last days, except that I feel that the temperature seems to have changed greatly, there is no special change, the weather is even better than we are now, the sky is that kind of dark blue, it is very similar to Tibet, Xinjiang and other plateaus, how to say, if it is really a nuclear war, how the nuclear clouds dissipate in a short period of time, this is a big question.

However, then again, I feel that the atmosphere of the apocalyptic era also seems to be thinner than in modern times, which has led to a lot of people having skin diseases there, which the locals say is a curse, but in my opinion, it is very likely that it is because of ultraviolet rays, which can lead to skin necrosis, and if it is severe, it can even escalate into skin cancer, which is very much like the effect of a nuclear bomb explosion, and to be honest, I don't particularly understand it now. ”

Shu Han explained his thoughts one by one, Su Yu listened very carefully, and after Shu Han finished speaking, Su Yu spoke: "Is it hot?" ”

"Well, judging by my feelings, it should be above 40 degrees Celsius, and if it is a sunny day, it can even reach more than 50 degrees Celsius if there are no clouds." Shu Han was very sure about this, but Su Yu shook his head and said, "This is not accurate. ”

"No way, in those days, there were no thermometers, how can I give you an accurate data." Shu Han said with a wry smile, the disbelief on Su Yu's face became even more obvious, and he said: "Then this data can't be so decisively certain, it's right." ”

"I agree with that." Regarding Su Yu's question, Shu Han also admitted that after all, judging by physical sensation alone, this is indeed a very blind thing, but in addition, he really has no other way, who called it an era when human civilization was buried in the ground and turned into dust.

"But based on your figures, we can make some inferences, first of all, as you just said, that it may be that the atmosphere caused by nuclear war is weak, which causes a large amount of ultraviolet rays to enter the interior of the earth, thereby increasing the temperature and killing people's skin.

In addition, there is a second possibility, have you ever wondered, could it be that for some reason, the earth's crust has changed dramatically, and the current Hai'an City has reached the equator near the end of the world, so you will feel that the temperature has risen? Su Yu made a guess.

"It's possible, but if there is such a large shift in the earth's crust, is it possible for humanity to re-establish a new civilization in two hundred years?" Su Yu's speculation, Shu Han has a lot of doubts, which is equivalent to saying that the earthquake is likely to be the cause of the destruction of human civilization, for this, Shu Han does not believe.

After all, the movement of the earth's crust is far more devastating than the nuclear bomb for human civilization, which is a huge adjustment to the entire earth, human beings, as one of the creatures attached to the earth, are very dependent on this environment, think about it, in modern times, every earthquake, if it exceeds the seventh magnitude, it will cause serious losses, and for the earth, not even a sneeze, at most is just a breath.

If Hai'an City is directly pushed to the vicinity of the equator, then there can be no ruins of human civilization at all, everything will sink into the ground, and such a huge movement cannot be completed in just a hundred years, or two hundred years, look at the archaeology of the earth, every time the crustal plate moves, it is calculated in hundreds of millions, and it moves once in hundreds of years.

That's unthinkable.

At the same time, Shu Han is unwilling to admit that it is caused by the movement of the earth's crust, because if this is really the case, then everything he is doing in modern times has no meaning, and people can still give it a go, but if it is a natural disaster, it can only be resigned to fate.

Shu Han's subconscious didn't want to give up, so he subconsciously didn't want to believe this.

Su Yu didn't discuss much about Shu Han's rebuttal, but immediately said his second set of arguments, he said: "In addition, there is a second possibility, that is, the temperature and atmosphere of the earth have not changed, but the human body itself has changed. ”

"What do you mean?" Su Yu's words shocked Shu Han, and he continued: "You mean that in the end of the world, the body has undergone certain changes, and their body surface temperature has decreased, so there will be deviations in the perceived temperature?" ”

"Well, that's what I thought, it's also very likely, the average temperature of our modern humans is around 37 degrees Celsius, which is not too far off from top to bottom, and the temperature of babies is slightly higher, and what about the doomsday people? Could it be that there has been a certain change that causes them to be unable to accept too high UV rays? ”

Su Yu's question was undoubtedly very beneficial, and it was something Shu Han hadn't thought of before, but he immediately thought of a question, he said: "If it is really a change in the temperature of the human body, but what is the reason, according to the laws of nature, animals are always moving in the direction of adapting to the environment?" But now the people of the end of the world are obviously not adapted to that environment, isn't there a problem? ”

"There are two possibilities, the first is that the decrease in human body temperature may be artificial, maybe because of environmental changes, or because of other creatures, I don't know the reason, but in my opinion, the above two cases should be ruled out.

After all, if this is really the case, then the result is knowable, that is, the human race will inevitably perish, after all, they make it impossible for human beings to live normally, that is, they want to kill human beings, but the world you go to, human beings still exist, and established their own city-states, restored the ancient order, and there is another possibility, which is to lower the temperature, which is more beneficial for human beings. ”

"How is this possible, you haven't seen the scene of the end of the world, everyone has terrible black scabs on their bodies, it hurts very much, it is very itchy, they will gradually spread until more than a third of the skin of the person is destroyed, at that time, the person will fall into a coma, and then die, the people of that era, except for the people in the city, who live in a house to avoid direct sunlight, most of the people who work outside live to be less than thirty-five years old, is this adaptation?"

"I don't know, Shu Han, don't ask me this direction I don't understand, for your question, I can only guess, we can think about it in a different way, maybe such a change is indeed not conducive to the survival of human beings, he will shorten the life span of human beings, but we might as well think about it, if there is no such change, will the human race be in a worse situation?"

"What's worse?" Shu Han was a little confused, he seemed to vaguely grasp the key to the problem, but for a moment he didn't know what the key was, Su Yu on the side said at this time: "Yes, otherwise why would the temperature of human beings decrease, this is obviously a bad thing, natural selection, natural evolution, only organisms that conform to the environment can survive, and other creatures should be eliminated, since human beings can survive to that era, it must be in line with the laws of the times, then the temperature reduction is a very likely thing."

Let's think about it the other way, if it is not the temperature of human beings that has decreased, or the earthquake that caused Hai'an City to the vicinity of the equator, but the temperature of the earth has really increased, what would have been the result? ”

Shu Han looked at Su Yu, he couldn't think at this time, and the layers of questions fell on his head, and he was already confused.

Seeing Shu Han's expression, Su Yu also understood that he was already stunned, he himself was not able to do it at the moment, and immediately said: "The North Pole and the South Pole will no longer exist, no, to be precise, the ice above will no longer exist, and our Hai'an City should have already been submerged at the bottom of the sea!" ”

"I really didn't expect this, it is worthy of you, Su Yu, yes, if the temperature really rises, then Hai'an City would have been flooded a long time ago, and if Hai'an City is not in its original location, then it is impossible for human civilization that has experienced a major earthquake to recover so quickly, and I can indeed feel the increase in temperature, so there is only one possibility, you are right, in that era, the temperature of human beings has dropped!" Su Yu had a feeling of sudden enlightenment.