Voyage of the Stars

If humans continue to move forward on the road of design evolution, they may not be able to carry out specialized modifications to parts of the body.

Such as activating a certain gene or replacing a certain gene so that the human eye has the same night vision function as a feline, and can switch at any time.

Of course, this is just one of them, there are many other abilities of earthly creatures.

Among the many technological advances, the most surprising development is the acceleration buffer.

It was originally thought that the accelerated buffer liquid could be realized after the body was strengthened. After seventeen years on the ground, humans overcame the final technical problem and successfully produced this liquid.

However, after experiments, it was found that the acceleration buffer was not as perfect as imagined.

Yes, the accelerating buffer has been successful in principle. This liquid is very rich in oxygen. In clinical trials, it can also fill a person's entire lungs with liquid, and then fill each organ in turn, thus achieving human health. Breathe in acceleration buffer.

But this process is very painful, and many experimenters have experienced various adverse reactions to varying degrees during the process of filling various organs with liquid.

Such as choking reaction, vomiting reaction, labored breathing, etc.

The first two are self-defense mechanisms of body functions, which can be solved through certain training, but the latter is a problem of respiratory system strength, which is a bit troublesome. However, the problem is not that big, because scientists have discovered that this is due to the fact that the breathing medium changes from gas to liquid, causing a large amount of liquid to quickly pass through the narrow nasal cavity. This problem leads to the theory that the muscles required for people to breathe in liquid are larger than those in air. Medium is bigger.

In the end, this problem was solved after the experimenter was replaced by a human being in peak human condition.

In other words, the acceleration buffer has completely solved the problem of liquid breathing.

However, since this liquid is called acceleration buffer, breathing is not actually its main problem. Its main problem is buffering. This is the fundamental problem and the problem with the imperfection of acceleration buffer.

Because in order to have a buffering effect, the accelerating buffer must have five characteristics.

First, breathe.

This is the least technically difficult and no problem.

Second, it can participate in the circulatory system instead of body fluids.

This is one of the basic conditions to ensure human survival inside. The technical difficulty is greater than breathing, but it has also been solved.

Third, the acceleration buffer is not compressed. This is the most basic property of this type of liquid, because if the liquid can be compressed, then the compression rebound is enough to kill humans, so there is no anti-high G acceleration effect.

This can be said to have been achieved when the accelerated buffer was declared successfully prepared.

Fourth, liquid can fill the cavities in the human body that do not originally have body fluids, such as the chest cavity, joint cavity, abdominal cavity, pelvic cavity, brain cavity, and organs with empty cavities, such as the stomach, duodenum, bladder, gallbladder, and uterus. etc.

If any of these cavities are not filled with liquid, once the speed is accelerated, they will still be damaged by centrifugal force. What should be ruptured will still rupture, without any protective effect.

Among them, the technical difficulty of filling the brain cavity with accelerating buffer solution is the most difficult. Well, the side effects of accelerating buffer solution in the brain cavity have been solved. Otherwise, it cannot be said that the research on this liquid was successful. So the main reason is that the brain is too sophisticated and there is no way to fill the brain cavity directly by injecting liquid into a cabin.

The phrase "water in the brain" is often used to describe a person who has a brain problem, but the actual situation is that it is really difficult for a person to have water in the brain through the mouth and nose.

Because the brain cavity, or cranial cavity, is a closed cavity, there is no way for liquid to penetrate directly.

In order to solve this problem, scientists proposed that they can be injected with a fine needle. But in this case, each person has to be equipped with a special device, and it has to be done every time for acceleration, which is very troublesome and unsafe.

And if the buffer is not injected into the brain cavity, then according to data, the effect of the accelerating buffer will be greatly reduced, and its protection limit will jump directly from 120 G to 80 G.

The cranial cavity is a difficult problem to solve.

Filling the uterus is an extremely troublesome problem. In short, the majority of women are very repelled. You can imagine this for yourself.

Therefore, the successfully developed acceleration buffer cannot completely solve the problem of high-G acceleration faced by humans, and cannot allow human spacecraft to exert its highest performance.

And finally, the fifth point: this liquid can equalize the density of the human body.

This is a problem of the nature of human beings and cannot be solved.

Because humans cannot make the acceleration buffer possess magical properties, after soaking a person in it, the density of each part of the human body becomes uniform.

It is not difficult to imagine that the density of human bones is different from that of other parts. Although the acceleration buffer can balance the pressure inside and outside the human body, as long as the density of the human body is different from the density of the acceleration buffer, once the spacecraft is running at full power, When you get up, the person is still as if he was thrown into a centrifuge. The dense bones will break away from the human body, causing the person to die suddenly.

Speaking of centrifuges, by the way.

In the process of separating plant cells with a differential centrifuge, you only need to spin the centrifuge to an acceleration of 150G for 20 minutes, and then complete cells will be obtained.

Once this acceleration exceeds 174G, the cells will rupture. As cells, it can also be said that the maximum acceleration that human cells can withstand is 174G.

Of course, due to the relationship that cannot be solved in the fifth point, the human body has no chance to reach the cell endurance limit.

So now it is clear that the maximum instantaneous acceleration of bone and flesh separation is the protection limit of the acceleration buffer.

So what is this value for humans today?

The answer is 77G. This is the current ability of human beings to endure after reaching the peak state of the human body through various existing biotechnologies. Of course, this is under the condition that the accelerating buffer protects other organs in the body.

In other words, the emergence of the acceleration buffer allows people's fleet to accelerate and decelerate at a maximum acceleration of 77G.

So, the acceleration buffer succeeded, but not completely.

The main problem, the fundamental problem, still circles back to the human body.

But that doesn’t mean there’s no way to solve it, because humans still have body strengthening programs, and there are only body strengthening programs.

Precisely because humans were still unable to maximize the performance of battleships after the emergence of the acceleration buffer, in the following time, the new government decisively adjusted the key scientific research directions and officially placed physical enhancement as a top priority in future work.

At the same time, it is also the reason why the acceleration buffer is not ideal. The last resistance of human society to the evolution of design has finally disappeared.

At this point, human society has overcome concerns about the final moral issues and its double-edged sword nature of gene editing, and has officially embarked on the path of drastic modification of its own genes.