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The mean time between major impacts is estimated to be at least 100 million years. During the last 540 million years, simulations demonstrated that such an impact rate is sufficient to cause five or six mass extinctions and 20 to 30 lower severity events. This matches the geologic record of significant extinctions during the Phanerozoic Eon ...
According to psychologists, possible explanations for why people believe in modern apocalyptic predictions include: mentally reducing the actual danger in the world to a single and definable source; an innate human fascination with fear; personality traits of paranoia and powerlessness; and a modern romanticism related to end-times, resulting ...
Other benefits of ceasing human reproduction that he cites include the end of abortion, war, and starvation. [21] Knight argues that "procreation today is de facto child abuse". [19] He maintains that the standard of human life will worsen if resources are consumed by a growing population rather than spent solving existing issues. [19]
However, while popular perception sometimes takes nuclear war as "the end of the world", experts assign low probability to human extinction from nuclear war. [ 85 ] [ 86 ] In 1982, Brian Martin estimated that a US–Soviet nuclear exchange might kill 400–450 million directly, mostly in the United States, Europe and Russia, and maybe several ...
Man After Man explores a hypothetical future path of human evolution set from 200 years in the future to 5 million years in the future, with several future human species evolving through genetic engineering and natural means through the course of the book. [1]
The World Without Us is a 2007 non-fiction book about what would happen to the natural and built environment if humans suddenly disappeared, written by American journalist Alan Weisman and published by St. Martin's Thomas Dunne Books. [1]
In 2008, M. Hotta proposed that it may be possible to teleport energy by exploiting quantum energy fluctuations of an entangled vacuum state of a quantum field. [20] In 2023, zero temperature quantum energy teleportation was observed and recorded by Kazuki Ikeda for the first-time across microscopic distances using IBM superconducting computers ...
A global catastrophic risk or a doomsday scenario is a hypothetical event that could damage human well-being on a global scale, [2] even endangering or destroying modern civilization. [3] An event that could cause human extinction or permanently and drastically curtail humanity's existence or potential is known as an " existential risk ".