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Many hypothetical doomsday devices are based on salted hydrogen bombs creating large amounts of nuclear fallout.. A doomsday device is a hypothetical construction — usually a weapon or weapons system — which could destroy all life on a planet, particularly Earth, or destroy the planet itself, bringing "doomsday", a term used for the end of planet Earth.
Mushroom cloud from the 1954 explosion of Castle Bravo, the largest nuclear weapon detonated by the U.S.. A nuclear holocaust, also known as a nuclear apocalypse, nuclear annihilation, nuclear armageddon, or atomic holocaust, is a theoretical scenario where the mass detonation of nuclear weapons causes widespread destruction and radioactive fallout, with global consequences.
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". [4]
They are created with one single aim in mind: to be destroyed as quickly as possible. And in that, the steelworks company behind them boasts, these decoy weapons are remarkably successful ...
Being unable to compete with AI in this new technological era, Professor Bostrom warns, could see humanity replaced as the dominant lifeform on Earth. The superintelligence may then see us as ...
It could be a deep fake video that accelerates tensions between two longtime rival countries, or cyberattacks that ensure a presidential run, or simply the use of AI weapons that many researchers ...
A powerful solar flare, solar superstorm or a solar micronova, which is a drastic and unusual decrease or increase in the Sun's power output, could have severe consequences for life on Earth. [145] [146] Conjectured illustration of the scorched Earth after the Sun has entered the red giant phase, about seven billion years from now [147]
Given the intensity of the gamma radiation, not even those in basement shelters could survive within the fallout zone. [7] However, the short half-life of sodium-24 (15 h) [8]: 25 would mean that the radiation would not spread far enough to be a true doomsday weapon. [7] [9] A cobalt bomb was first suggested by Leo Szilard in 1950. He publicly ...