This is a summary of the text:
The text is about the possibility of using artificial hibernation or cryonics to travel in outer space or extend human life. The text gives examples of animals and humans who survived freezing temperatures and discusses the challenges and risks of freezing and unfreezing organs or bodies. The text also mentions some companies that offer cryonics services and some films that depict interstellar travel with hibernation. The text concludes by saying that it is uncertain whether cryonics will work in the future and advises the reader to do their own research.
1. Astronauts are sailing through space in a state of deep sleep to colonize a far-off planet.
2. The main heroes are astronauts awake in special hibernation pods to save humanity.
3. The text raises the question of whether such interstellar travel is possible in real life.
4. The discussion includes the Fermi paradox, the uncertainty of finding any other intelligent race.
5. The scenario discussed involves long-term, generation spacecraft travel where people reproduce, die, and are replaced by their offspring.
6. The text suggests that such a journey could lead to a tragic outcome, such as a creature from outer space invading the spacecraft.
7. The text notes that such a journey requires significant resources, space for training and entertainment, and a large amount of food, water, and medicine.
8. The text considers the possibility of freezing people for travel, similar to a film.
9. The text suggests that such a journey could have a terrible outcome.
10. The text mentions sci-fi writers who first suggested hibernation in outer space.
11. The text discusses the concept of artificial hibernation, an ability to slow metabolism and return to normal at any moment.
12. The text mentions the partial shutdown of an organism during hibernation, using bears as an example.
13. The text mentions that humans cannot hibernate.
14. The text discusses the possibility of traveling for tens of years or even tens of thousands of years, considering two ways: artificial hibernation and cryonics.
15. The text discusses the concept of therapeutic hypothermia, a technique where a patient's body temperature is reduced to aid in recovery.
16. The text mentions several real-life cases of people surviving extreme cold, including a 14-year-old boy who survived 15 minutes underwater after falling through ice, and a small child who survived two hours after freezing in a snowdrift at -24 degrees Celsius.
17. The text discusses a 2005 article titled "Zombie dogs" where scientists pumped blood out of dogs and replaced it with a special solution to keep their bodies cool, and then restarted their organisms with an electric charge.
18. The text mentions that such techniques are primarily used to save lives in dire conditions.
19. The text discusses the idea of freezing an organism to the point of stopping its metabolism, similar to the cryo-tube in the Futurama cartoon.
20. The text discusses the concept of vitrification, where water remains the same even at extreme temperatures, and shows an example of a rabbit kidney vitrified this way.
21. The text mentions that cryoprotectants, which prevent ice crystals from forming in the cells, could be used to freeze human organs and save more lives.
22. The text discusses the idea of cryonics, where a person is put into medically induced suspended animation, almost a complete halt of the organism.
23. The text mentions that when the heart stops, it's not death yet. The most important thing is to keep the brain undamaged, which is why freezing must be performed within a few minutes.
24. The text mentions the idea of leaving bodies frozen until people learn how to unfreeze them without any damage and immediately save them.
25. The text mentions that there are organizations that can freeze either the entire body or just the brain, but this is only possible when the heart stops beating.
26. The text discusses the idea of cryonics as an investment into developing future technology.
27. The text concludes with the idea of postponing a trip to friends for an unspecified period of time.