Mar 8, 2020 08:13 PM
https://gizmodo.com/how-humanity-could-l...1841892619
EXCERPT (George Dvorsky): . . . Of course, by “we” I’m referring to future offshoots of humans, as our species is likely to change dramatically over the coming eons [...] Moreover, if we are able to avoid an apocalypse and get our shit together, it’s fair to say that the indefinite prolongation of life is an inalienable good, assuming we enter into a benign mode of existence. We should want to do this, as the alternative—oblivion—isn’t much of a choice. Consequently, it’s something we should be seriously considering.
[...] Our civilization will soon have to juggle an increasing array of existential and catastrophic risks, in which each added doomsday scenario will boost the odds of our self-destruction by orders of magnitude. That we devise sensible, practical solutions is paramount, if our civilization—and our species itself—is to last forever. .. but there’s a sad fact we have to consider: Our current state of technology is forcing us to keep all our eggs in one basket. Accordingly, we need to become an interplanetary species.
Once we develop the capacity to live off-planet, however, it might be best for us to break off into separate groups and head in different directions—even if it means forever losing contact with each other. It’s an idea I call Distributed Humanity. Finding ways for us to live away from Earth should be one of our biggest priorities [...]
As it stands, we have yet to develop a viable, self-sustaining biosphere, which, when you think about it, is really discouraging, if not completely alarming. During the 1970s and 1980s, the Soviets experimented with BIOS-3 in Siberia, but the system relied too heavily on resources from the outside to be considered a true biosphere. As for the $200 million Biosphere2 project of the 1990s, it simply didn’t work: The dwelling exhibited fluctuating CO2 levels, insufficient amounts of oxygen, acidic water, and even inhabitants who displayed social dysfunction after being cooped up for so long.
These failures mean Earth boasts the only functioning biosphere that we know of. This is troubling news, because we’re going to need artificial biospheres if we’re to live off the planet, whether that’s on the Moon, Mars, or a generation ship heading toward the nearest habitable exoplanet. We consequently need to reboot our biosphere projects, and not just because they would enable life off the planet; self-sustaining biospheres could eventually become a requirement on Earth, should our environment collapse to shit. Moreover, they could also inform future efforts to geoengineer our planet, and possibly other planets, like Mars.
We should also adopt an interstellar approach to space exploration. We won’t be able to send colonists to another star system for quite some time, but the day is fast approaching when we’ll be able to dispatch probes to explore distant exoplanets. [...] Assuming we’ll find ways to live off the planet, a state of Distributed Humanity would help us to avoid collective mass destruction, whether through natural or self-inflicted causes. Spreading ourselves across the Milky Way would prevent all of us from getting killed in a self-inflicted apocalypse ... if one group were to be destroyed, either by some natural calamity ... other groups would live on.
A downside of Distributed Humanity is the potential for convergent risks. Dispersed groups, despite having no contact, could still evolve along parallel lines and potentially stumble upon the same ways to die—while at the same time not being able to alert other groups to looming threats. [...] Avoiding extinction is all fine and well, but we also need to become more durable and resilient as individuals. If we’re going to live in space, we’re going to have to biologically re-engineer ourselves...
First and foremost, we’d have indefinite lifespans. An uploaded digital being could live in a robust virtual-reality environment hosted inside a supercomputer [...] Entire civilizations could live on a single supercomputer, enabling the existence of potentially trillions upon trillions of individuals, each of them a single brain emulation. These supercomputers could in turn be duplicated and sprinkled across the galaxy and beyond, in what could be described as Distributed Posthumanity.
Various futurists have speculated about the powerful supercomputers needed to run these brain emulations and, collectively, posthuman civilizations. The late physicist Robert Bradbury [...] predicted the existence of what he called Matrioshka Brains. These hypothetical megastructures would draw their power from nearby stars, allowing for tremendous computational potential. A similar idea, called Jupiter Brains, would work on a smaller, planetary scale. Given the finite nature of stars, however, digital civilizations would have to eventually relocate to find alternative energy sources.
[...] Digital existence could also allow for disembodied travel through space at the speed of light. Traveling as a decompiled stream of 1s and 0s, an interstellar digital traveler would arrive at a relay station on another planet or some other distant location in space. This is all highly speculative, of course. We’re not yet entirely sure if the human mind can be translated in the ways described here or if digital life is actually safer or saner than biological existence. In this posthuman, postbiological digital mode, we could conceivably eke out an existence until the end of the universe. Even then, we might still find ways to persist until the last possible minutes, quite literally.
Failing all of this, we might still find other ways of living forever, though in a more symbolic sense. [...] Back in 2016, for example, scientists developed a new storage system that can encode data at the atomic scale. In tests, the device was able to pack 500 terabits onto a single square inch—enough to store every book written by humans onto a drive the size of a postage stamp. In the future, similar technologies could allow us to pack the entirety of human culture onto a storage medium, load it onto an interstellar probe, and send it into deep space. Should an extraterrestrial civilization be lucky enough to intercept this probe, they’d have an entire civilization’s worth of information to parse—assuming we could create a kind of Rosetta Stone to assist with the translation.
[...] Lastly, we could leave our cultural artifacts right here on Earth, as a kind of monument to ourselves once we’re gone. At the same time, these monuments could serve as a cautionary tale to visiting extraterrestrials—a warning that they shouldn’t repeat the mistakes made by a species left alone to fend for itself in a forgotten corner of the Milky Way. (MORE - details)
EXCERPT (George Dvorsky): . . . Of course, by “we” I’m referring to future offshoots of humans, as our species is likely to change dramatically over the coming eons [...] Moreover, if we are able to avoid an apocalypse and get our shit together, it’s fair to say that the indefinite prolongation of life is an inalienable good, assuming we enter into a benign mode of existence. We should want to do this, as the alternative—oblivion—isn’t much of a choice. Consequently, it’s something we should be seriously considering.
[...] Our civilization will soon have to juggle an increasing array of existential and catastrophic risks, in which each added doomsday scenario will boost the odds of our self-destruction by orders of magnitude. That we devise sensible, practical solutions is paramount, if our civilization—and our species itself—is to last forever. .. but there’s a sad fact we have to consider: Our current state of technology is forcing us to keep all our eggs in one basket. Accordingly, we need to become an interplanetary species.
Once we develop the capacity to live off-planet, however, it might be best for us to break off into separate groups and head in different directions—even if it means forever losing contact with each other. It’s an idea I call Distributed Humanity. Finding ways for us to live away from Earth should be one of our biggest priorities [...]
As it stands, we have yet to develop a viable, self-sustaining biosphere, which, when you think about it, is really discouraging, if not completely alarming. During the 1970s and 1980s, the Soviets experimented with BIOS-3 in Siberia, but the system relied too heavily on resources from the outside to be considered a true biosphere. As for the $200 million Biosphere2 project of the 1990s, it simply didn’t work: The dwelling exhibited fluctuating CO2 levels, insufficient amounts of oxygen, acidic water, and even inhabitants who displayed social dysfunction after being cooped up for so long.
These failures mean Earth boasts the only functioning biosphere that we know of. This is troubling news, because we’re going to need artificial biospheres if we’re to live off the planet, whether that’s on the Moon, Mars, or a generation ship heading toward the nearest habitable exoplanet. We consequently need to reboot our biosphere projects, and not just because they would enable life off the planet; self-sustaining biospheres could eventually become a requirement on Earth, should our environment collapse to shit. Moreover, they could also inform future efforts to geoengineer our planet, and possibly other planets, like Mars.
We should also adopt an interstellar approach to space exploration. We won’t be able to send colonists to another star system for quite some time, but the day is fast approaching when we’ll be able to dispatch probes to explore distant exoplanets. [...] Assuming we’ll find ways to live off the planet, a state of Distributed Humanity would help us to avoid collective mass destruction, whether through natural or self-inflicted causes. Spreading ourselves across the Milky Way would prevent all of us from getting killed in a self-inflicted apocalypse ... if one group were to be destroyed, either by some natural calamity ... other groups would live on.
A downside of Distributed Humanity is the potential for convergent risks. Dispersed groups, despite having no contact, could still evolve along parallel lines and potentially stumble upon the same ways to die—while at the same time not being able to alert other groups to looming threats. [...] Avoiding extinction is all fine and well, but we also need to become more durable and resilient as individuals. If we’re going to live in space, we’re going to have to biologically re-engineer ourselves...
First and foremost, we’d have indefinite lifespans. An uploaded digital being could live in a robust virtual-reality environment hosted inside a supercomputer [...] Entire civilizations could live on a single supercomputer, enabling the existence of potentially trillions upon trillions of individuals, each of them a single brain emulation. These supercomputers could in turn be duplicated and sprinkled across the galaxy and beyond, in what could be described as Distributed Posthumanity.
Various futurists have speculated about the powerful supercomputers needed to run these brain emulations and, collectively, posthuman civilizations. The late physicist Robert Bradbury [...] predicted the existence of what he called Matrioshka Brains. These hypothetical megastructures would draw their power from nearby stars, allowing for tremendous computational potential. A similar idea, called Jupiter Brains, would work on a smaller, planetary scale. Given the finite nature of stars, however, digital civilizations would have to eventually relocate to find alternative energy sources.
[...] Digital existence could also allow for disembodied travel through space at the speed of light. Traveling as a decompiled stream of 1s and 0s, an interstellar digital traveler would arrive at a relay station on another planet or some other distant location in space. This is all highly speculative, of course. We’re not yet entirely sure if the human mind can be translated in the ways described here or if digital life is actually safer or saner than biological existence. In this posthuman, postbiological digital mode, we could conceivably eke out an existence until the end of the universe. Even then, we might still find ways to persist until the last possible minutes, quite literally.
Failing all of this, we might still find other ways of living forever, though in a more symbolic sense. [...] Back in 2016, for example, scientists developed a new storage system that can encode data at the atomic scale. In tests, the device was able to pack 500 terabits onto a single square inch—enough to store every book written by humans onto a drive the size of a postage stamp. In the future, similar technologies could allow us to pack the entirety of human culture onto a storage medium, load it onto an interstellar probe, and send it into deep space. Should an extraterrestrial civilization be lucky enough to intercept this probe, they’d have an entire civilization’s worth of information to parse—assuming we could create a kind of Rosetta Stone to assist with the translation.
[...] Lastly, we could leave our cultural artifacts right here on Earth, as a kind of monument to ourselves once we’re gone. At the same time, these monuments could serve as a cautionary tale to visiting extraterrestrials—a warning that they shouldn’t repeat the mistakes made by a species left alone to fend for itself in a forgotten corner of the Milky Way. (MORE - details)
