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The danger of searching for extraterrestrial life

31.07.2017

Renowned scientist Stephen Hawking said that he is against the search for extraterrestrial life, as it can be dangerous.

Hawking admitted that the longer he lives and studies the world, the more he becomes convinced that we are not alone in the universe. But he urges other scientists to approach this fact with caution.

Stephen cited the struggle of Native Americans and Columbus as an example. The Indians were very warlike, bloodthirsty and posed a great threat to the team.

The scientist believes that there is a high probability that this case can be repeated with alien civilizations. He recalled that the planet Gliese 832c was recently discovered, on which life may well be present, since it is very similar to ours.

Stephen Hawking urges the world not to react joyfully and not to make hasty decisions if we receive a signal from her, since we have no idea what kind of temperament those creatures can have.

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The work of the heart can be divided into two phases: systole and diastole. During the systolic phase, the heart ejects blood from itself into the vessels, and then it goes through the body, during the diastole, the blood enters the heart. Previously, employees of the Institute of Consciousness and the Human Brain of the Max Planck Society found that perception changes depending on the phase of the heart rhythm: for example, if a weak current was applied to the finger, then the person felt the electrical tingling better during diastole - and during systole the sensitivity worsened.

Scientists have figured out what happens to the brain in the course of the heart rate. There are special waves in brain electrical activity called P300 that are thought to be associated with consciousness. And during systole, these "conscious" waves were suppressed. That is, the brain ignores those stimuli that are associated with the pulse. But since the conscious perception as a whole is muffled, then some weak signals from the outside world that fall on systole also pass by it. By the way, a few years ago we already wrote about how the brain closes the heart rate from our attention - after all, if we heard the heart rate, then at best it would distract us from what is happening around, and at worst - we would just went crazy.

If the brain does not suppress the perception of systole so much, then it generally processes external stimuli worse, even if they are strong. That is, the attention of the brain is dispersed between internal physiology and the outside world.

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