[ExI] Could humans live on any other planet?
atymes at gmail.com
Tue Jan 17 16:02:03 UTC 2023
Or at the very least, build orbital habitats: most of the benefits of
off-Earth colonization, much lower cost and easier than transforming other
On Tue, Jan 17, 2023 at 7:52 AM Brent Allsop via extropy-chat <
extropy-chat at lists.extropy.org> wrote:
> I think this is all absurd and clueless thinking. We'll be able to
> re-engineer our bodies, and all life, long before we are traveling to other
> stars. Helloooo.
> We shouldn't be going to space, mars, and even underwater, till we can do
> so without space suits (and till we have multiple restorable backups of
> On Tue, Jan 17, 2023 at 8:39 AM Adrian Tymes via extropy-chat <
> extropy-chat at lists.extropy.org> wrote:
>> Transplanting a biosphere to another world is possible. Much sci-fi
>> speculates about possible parallel evolution of life on other worlds that
>> would be compatible with Earth life, too.
>> On Mon, Jan 16, 2023 at 6:46 AM BillK via extropy-chat <
>> extropy-chat at lists.extropy.org> wrote:
>>> There's no Planet B.
>>> The scientific evidence is clear: the only celestial body that can
>>> support us is the one we evolved with. Here’s why.
>>> Arwen E Nicholson, Raphaëlle D Haywood
>>> Given all our technological advances, it’s tempting to believe we are
>>> approaching an age of interplanetary colonisation. But can we really
>>> leave Earth and all our worries behind? No. All these stories are
>>> missing what makes a planet habitable to us. What Earth-like means in
>>> astronomy textbooks and what it means to someone considering their
>>> survival prospects on a distant world are two vastly different things.
>>> We don’t just need a planet roughly the same size and temperature as
>>> Earth; we need a planet that spent billions of years evolving with us.
>>> We depend completely on the billions of other living organisms that
>>> make up Earth’s biosphere. Without them, we cannot survive.
>>> Astronomical observations and Earth’s geological record are clear: the
>>> only planet that can support us is the one we evolved with. There is
>>> no plan B. There is no planet B.
>>> The article is making the point that humanity is not self-sufficient.
>>> Humans require all the resources provided by the earth.
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