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Doomsday scenarios are possible events that could cause human extinction or the destruction of all or most life on Earth (a "true" or "major" Armageddon scenario), or alternatively a "lesser" Armageddon scenario in which the cultural, technological, environmental or social world is so greatly altered it could be considered like a different world.
Gray goo is another catastrophic scenario, which was proposed by Eric Drexler in his 1986 book Engines of Creation [76] and has been a theme in mainstream media and fiction. [77] [78] This scenario involves tiny self-replicating robots that consume the entire biosphere using it as a source of energy and building blocks. Nowadays, however ...
Belief in the apocalypse is most prevalent in people with lower levels of education, lower household incomes, and those under the age of 35. [9] [10] In the United Kingdom in 2015, 23% of the general public believed the apocalypse was likely to occur in their lifetime, compared to 10% of experts from the Global Challenges Foundation.
Imagination magazine cover, depicting an atomic explosion, dated March 1954. The apocalypse event may be climatic, such as runaway climate change; natural, such as an impact event; man made, such as nuclear holocaust; medical, such as a plague or virus, whether natural or man-made; religious, such as the Rapture or Great Tribulation; or imaginative, such as zombie apocalypse or alien invasion.
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 ".
PC game. The Chosen, a group consisting of a corporate- and government-determined human elect, depart a heavily polluted Earth via a fleet of starships, returning as a force to re-occupy Earth, fighting against the titular 7th Legion, a coalition of the most advanced post-apocalypse humans on Earth. Game 1997 Technology GURPS Reign of Steel
An impact event is commonly seen as a scenario that would bring about the end of civilization. In 2000, Discover magazine published a list of 20 possible sudden doomsday scenarios with an impact event listed as the most likely to occur.
Assume, for simplicity, that the total number of humans who will ever be born is 60 billion (N 1), or 6,000 billion (N 2). [6]If there is no prior knowledge of the position that a currently living individual, X, has in the history of humanity, one may instead compute how many humans were born before X, and arrive at say 59,854,795,447, which would necessarily place X among the first 60 billion ...