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Futurism

Stratospheric aerosol injection - Wikipedia

The Intergovernmental Panel on ... other solar geoengineering approaches, stratospheric aerosol injection would do so imperfectly and other effects are possible, particularly if used in a suboptimal manner. Various forms of sulfur have been shown to cool the planet after large ...

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Launch loop - Wikipedia

A launch loop, or Lofstrom loop, is a proposed system for launching objects into orbit using a moving cable-like system situated inside a sheath attached to the Earth at two ends and suspended above the atmosphere in the middle.

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Programmable matter - Wikipedia

An example of this more ambitious form of programmable matter is claytronics. There are many proposed implementations of programmable matter. Scale is one key differentiator between different forms of programmable matter. At one end of the spectrum, reconfigurable modular robotics pursues a ...

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Generation ship - Wikipedia

"Smith, C.M., "Estimation of a genetically viable population for multigenerational interstellar voyaging: Review and data for project Hyperion"". Acta Astronautica. 97: 16–29. Bibcode:2014AcAau..97...16S. doi:10.1016/j.actaastro.2013.12.013. ... Marin, F.; Beluffi, C. (2018). "Computing the minimal …

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Matrioshka brain - Wikipedia

A matrioshka brain is a hypothetical megastructure of immense computational capacity powered by a Dyson sphere. It was proposed in 1997 by Robert J. Bradbury (1956–2011). It is an example of a class-B stellar engine, employing the entire energy output of a star to drive computer systems. This concep…

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Cryonics - Wikipedia

A longer life of unremitting suffering, ... to non-revival". In 2016, Charles Tandy wrote in support of cryonics, arguing that honoring someone's last wishes is seen as a benevolent duty in American and many other cultures. Cryopreservation was applied to human cells beginning in 1954 with frozen sp…

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Mind uploading - Wikipedia

Many transhumanists look forward ... with transhumanists such as Nick Bostrom predicting that it will become possible within the 21st century due to technological trends such as Moore's law. Michio Kaku, in collaboration with Science, hosted the documentary Sci Fi Science: Physics of the Impossible,…

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Technological singularity - Wikipedia

According to the most popular version ... an explosive increase in intelligence that culminates in a powerful superintelligence, far surpassing human intelligence. Some scientists, including Stephen Hawking, have expressed concern that artificial superintelligence could result in human extinction. T…

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Space-based solar power - Wikipedia

Besides cost, SBSP also introduces several technological hurdles, including the problem of transmitting energy from orbit. Since wires extending from Earth's surface to an orbiting satellite are not feasible with current technology, SBSP designs generally include the wireless power transmission ...

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Alcubierre drive - Wikipedia

The Alcubierre drive ([alkuˈβjere]) is a speculative warp drive idea according to which a spacecraft could achieve apparent faster-than-light travel by contracting space in front of it and expanding space behind it, under the assumption that a configurable energy-density field lower than that of a v…

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Asteroid mining - Wikipedia

This left the crust depleted of ... e.g. at the Bushveld Igneous Complex, a famously rich source of platinum-group metals). Today, these metals are mined from Earth's crust, and they are essential for economic and technological progress....

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Seasteading - Wikipedia

In April 2019, the concept of floating cities as a way to cope with rising oceans was included in a presentation by the United Nations program UN-Habitat. As presented, they would be limited to sheltered waters. Critics of seasteading argue that some projects resemble "techno-colonialism" or risk di…

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Breakthrough Starshot - Wikipedia

StarChip was the name used by ... interstellar spacecraft envisioned for the Breakthrough Starshot program, a proposed mission to propel a fleet of a thousand StarChips on a journey to Alpha Centauri, the nearest star system, about 4.37 light-years from Earth. The ultra-light StarChip robotic nanocr…

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Terraforming of Mars - Wikipedia

Disagreement exists about whether ... planet habitable. Reasons for supporting terraforming the planet include allaying concerns about resource consumption and depletion on Earth and arguments that the alteration and settlement of other planets decreases the odds of humanity's ...

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Drexler–Smalley debate on molecular nanotechnology - Wikipedia

Drexler reiterated that these molecular assemblers would require no impossible fingers, and would augment solution-phase chemistry to produce macroscopic products with precise arrangements of chemical building blocks, using solution-phase molecular assemblers to bootstrap the construction of ...

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Stellar engine - Wikipedia

Such an engine is a stellar propulsion system, consisting of an enormous mirror/light sail—actually a massive type of solar statite large enough to classify as a megastructure—which would balance gravitational attraction towards and radiation pressure away from the star.

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Self-replicating spacecraft - Wikipedia

Seeder ships would be a suitable alternative to generation ships as a way to colonize worlds too distant to travel to in one lifetime. In "Part IV Wild Cards" of his 1981 book "2081: A Hopeful View of the Human Future", Gerard K. O'Neill discussed a hypothetical extraterrestrial race called the Prim…

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Dyson sphere | Kardashev Scale Wiki | Fandom

Planets provide the largest source of material for the construction of a Dyson swarm. The easiest design would be to use Mercury as the source of material, and to construct the Dyson swarm at approximately the same distance from the Sun.

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O'Neill cylinder - Wikipedia

Their rotation would provide artificial gravity. While teaching undergraduate physics at Princeton University, O'Neill set his students on the task of designing large structures in outer space, with the intent of showing that sustainable living in space could be possible.

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Longevity escape velocity - Wikipedia

At present, more than one year of research is required for each additional year of expected life. Longevity escape velocity occurs when this ratio reverses, so that life expectancy increases faster than one year per one year of research, as long as that rate of advance is sustainable.

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