"Neither Elon Musk Nor Anybody Else Will Ever Colonize Mars"

It's great to see someone FINALLY mention the magnetosphere issue, in the very first sentence no less, but this article rips into the idea so much more thoroughly than that, and with admirable gusto.

#skeptic #musk #mars

https://defector.com/neither-elon-musk-nor-anybody-else-will-ever-colonize-mars

Neither Elon Musk Nor Anybody Else Will Ever Colonize Mars | Defector

Mars does not have a magnetosphere. Any discussion of humans ever settling the red planet can stop right there, but of course it never does. Do you have a low-cost plan for, uh, creating a gigantic active dynamo at Marsโ€™s dead core? No? Well. Itโ€™s fine. Iโ€™m sure you have some other workable, sustainable planโ€ฆ

@anandamide that was a wild ride. Thank you for sharing.
@anandamide it's a pretty poor article. The writer states that colonising Mars is impossible due to a lack of magnetosphere and oxygen. This is factually incorrect. Also while Mars doesn't have a global magnetosphere, it does have localised magnetic fields in certain regions of its crust.

@robriley Are you implying you can live without oxygen?

If "colonizing" means living in closed underground bunkers, you could do the same thing on Earth.

@anandamide

@anandamide The vibe of this article reminds me of my favorite book on the subject A City On Mars. The audio book is fantastic and they do an amazing job breaking down just how horrible Mars is.
@anandamide This is exactly the same point I've brought up countless times with Elmo fanboys. Mars is more like the Moon than Earth. It's small, cold, has an extremely thin atmosphere we can't breathe, and NO natural protection from radiation. To survive there, you need almost everything you'd need to survive on the Moon.
@wesdym
Yes. Or on ISS. Primary problem with ISS is not only that its too small (which could be fixed with enough money), nor the zeroG issues, but that it is in vacuum, i.e. it cannot gather its own resources, but they must be shipped. And isn't that why NASA Artemis program is about building a permanently populated moon base? That has some resources, which is a stepping stone. Small steps. And yeah, unless you like living in a basement, you wouldn't like Mars. Yet some would.
@anandamide
@anandamide The book โ€œA City on Marsโ€ by @ZachWeinersmith and his wife Kelly, takes apart the whole idea of space colonisation. https://www.acityonmars.com
A CITY ON MARS

Earth is not well. The promise of starting life anew somewhere far, far awayโ€”no climate change, no war, no Twitterโ€”beckons, and settling the stars finally seems within our grasp. Or is it? Critically acclaimed, bestselling authors Kelly and Zach Weinersmith set out to write the essential guide to a glorious future of space settlements, but after years of research, they arenโ€™t so sure itโ€™s a good idea.

@bjn @anandamide @ZachWeinersmith I think I still have its counterpart, Robert Zubrin's "The Case for Mars", lying around. I haven't read it. I probably never will. It would infuriate me too much.
@hopfgeist @bjn @anandamide Zubrin disagrees with us a lot, but I would say he's the best opposition voice in book-length. His science is totally solid, it's just a matter of how you feel about his planning and analysis of history and values, etc.
@ZachWeinersmith @bjn @anandamide oh, that's a great endorsement, maybe I should read it after all. Thanks for your reply.
@hopfgeist @bjn @anandamide I think it'd be informative. He genuinely dislikes us (the words "dishonest" and "enemy" have been used) but it's essentially the classic work in the field. Musk is a fan of it. If you want to know where the community is at, it's pretty central. We just think it skips over a lot of potential showstoppers and relies on theories of history that are inaccurate.
@ZachWeinersmith @bjn @anandamide the X-Plane flight simulator had a "Mars" mode, simulating Mars gravity and atmospheric conditions. While we were developing planes to fly in that "thin air" (which we now know definitively to be totally possible), some 10 years ago, the book was mentioned a couple of times.
@ZachWeinersmith @hopfgeist @bjn @anandamide
Thanks Zach, I was on the fence too. Now I can read both books :)
@anandamide You could do an underground or in radiation proof pods. But yeah you need an atmosphere. That's kind of how that works.
The solar winds don't care how much money you paid to go die on the surface of Mars.

@anandamide

There is a good not too difficult way to solve the issue. Just punch the leading edge of Mars with ice rich asteroids until you get enough spin to increase core plasticity and reboot the magnetosphere. For legal purposes this is trademarked and copyrighted. To keep it out of suck hands like Musk's.

Atmosphere jump starts too. Mars is waiting to breathe again.

#democracy

@kevinrns @anandamide "just" is doing a lot of heavy lifting there

@rayres @anandamide

Heavy dropping, or maybe heavy pitching.

@anandamide though the article is wrong on the "Sun too big" time-line, it's gonna be like 1 billion years or so until it starts getting really a bit too bright for water to not evaporate.

https://theconversation.com/the-sun-wont-die-for-5-billion-years-so-why-do-humans-have-only-1-billion-years-left-on-earth-37379

The sun wonโ€™t die for 5 billion years, so why do humans have only 1 billion years left on Earth?

In a few billion years, the sun will become a red giant so large that it will engulf our planet. But the Earth will become uninhabitable much sooner than that. After about a billion years the sun willโ€ฆ

The Conversation

@vriesk @anandamide

I doubt that makes any difference to the point made.

@Edelruth @anandamide No, not much. Just a factoid in this context.
@anandamide ssssh, donโ€™t tell Leon !
@anandamide that was a very interesting read (I usually can't manage bigger pieces of text)
I would love to hear @hankgreen about this.

@anandamide sorry, but even I knew about Mars' mini-magnetosphere and I'm an idiot. It's not impossible to successfully colonize Mars if you are willing to throw money and several centuries of human capital at the problem. It's not ever going to be Earth and no one assumes it will be.

https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023GL103999

@anandamide Methinks the time for Mars to support life was very, very long ago indeed.
@anandamide Gets a little unhinged around the point of painting coffee consumption as a moral infraction in the middle there, to be honest. I think it's clear we need to stop burning all that petrol, but wind and solar powered shipping is something we're clearly going to be figuring out over the next decade.
@anandamide lol the author doesnโ€™t know what the expedition implies ๐Ÿ˜„

@anandamide

"This ordering of priorities, in which the sacrosanct goal is to extend "the probable lifespan of consciousness" and space colonization the means, is above all else a monstrous permission structure for this outspoken bigot's vile social ideas, a kind of reductio ad absurdum for what's been doing business as "effective altruism" for a while now. The fantasyโ€”and it is a fantasyโ€”isn't one of space travel and exploration and some bright Star Trek future for humanity, but one of winnowing and eugenics, of cold actuarial lifeboat logic, of ever greater reallocation from the dwindling many to the thriving few. That's the world as Elon Musk and his cohort want it; Mars colonization is just a pretext."

Fucking bravo.

@anandamide also:

"k-hole John Galt cosplay"

@anandamide this article unfortunately suffers from "Elon idea, therefore bad idea" syndrome. In this case, (a) creating a magnetosphere is in fact possible (cf. "How to create an artificial magnetosphere for Mars", R.A. Bamford et. al., https://arxiv.org/pdf/2111.06887.pdf), and (b) you don't need a magnetosphere if you live in enclosed, rad-protected areas.

The real problem, which the article buries midway through, is not doing enough to protect Earth.

@anandamide
.
this creature couldn't live on a ready made planet
@anandamide and a lot of other practical reasons why it wonโ€™t be worth it: https://homerhickamblog.blogspot.com/2019/07/mars-is-not-for-humans-not-now-and.html
Mars is not for humans, not now and perhaps not ever and here's why...

And so it continues by some folks at NASA Headquarters that we are going to the moon with the Artemis program so that the agency can then p...

@anandamide @rootwyrm It has been speculated that lava tubes might be the answer to long term stays in places like Mars or the Moon.

BUTโ€ฆ

There is still no practical way to shield from the radiation during the trip. Currently, NASA has only two approaches to this problem: send older astronauts and get them there and back as fast as possible.

@anandamide Didn't even mention the gravity issue: Humans are very much adapted to earths 1G gravity. Mars has, like, 0.38 G gravity. And it's not just a matter of muscles, or even bones - your veins are calibrated to the pressure exerted by your blood being appropriate for a world with 1G gravity, and without it they degrade in all sorts of horrible ways. :/
@anandamide So, you want to live on Mars, even with space suits and life support, you need to fundamentally re-engineer the human body to an absolutely terrifying degree. And in order to do that in any reasonable degree, you need AGI. And if we're positing AGI, well, we're so far off from the reality we're familiar with, it's barely even worth talking bout from a scientific perspective - you might as well just start drawing cool pictures...
@anandamide Which isn't to say that it won't happen! Just that it will be so disruptive, it's nigh impossible to predict what comes afterwards.
@Angle @anandamide

Part of why the scifi trope of a galaxy-spanning future for humanity is so laughable: anyone that's truly adapted to life-not-on-Earth seems unlikely to be something that you'd continue to be able to call "human".
@anandamide "...it took billions of years, reproductions beyond counting, before any individual life got advanced enough to think something as silly as 'Hey, let's go live on Mars.'"

@anandamide

Let me say this as emphatically as possible (climbs onto table and cups hands around mouth).

NO ONE SHOULD WANT TO LIVE IN A PLACE WHERE ELON MUSK CONTROLS YOUR OXYGEN ALLOTMENT.

That there is a subset of humans who think this is a good idea is wild.

#Mars #InterplanetaryTravel #ElonMusk #Musk

@sshann @anandamide @leeolds musk is the kind of person who watches dystopian movies like 2011โ€™s โ€œIn Timeโ€ and thinks โ€œdamn, if only that could be real!โ€

@anandamide
A type of moss grows at 6,480 metres (21,260 ft) on Mount Everest and it may be the highest altitude plant species.[66]

Researchers have found evidence that microbes live in the ice at the South Pole

This rather refutes the claims in the "article".

https://en.wikipedia.org/wiki/Mount_Everest

http://newsvote.bbc.co.uk/2/hi/science/nature/827063.stm

Mount Everest - Wikipedia

@martin_piper @anandamide 6480 meters is not 8800 meters, and microbes aren't "complex life" are they?
@pixelambacht "Complex life is normally defined as eukaryote life forms, including all animals, plants, fungi, and most unicellular organisms."
Mount Everest climbers leave their germs behind

EarthSky | Updates on your cosmos and world

@martin_piper Oh wow indeed: "...the germs climbers leave behind at the South Col might survive a very long time โ€ฆ centuries"

Well, off to Mars then!

@martin_piper @anandamide Maybe the moss is what creates the magnetosphere.
@anandamide
This needs to be said again and again and again. There are no options outside Earth. Earth is the only habitable planet in our solar system. Getting anywhere else is also out of the question. Even if we could get a spaceship up to anything close to the necessary speed, interstellar dust impacts and hard radiation would kill anybody on board long before they arrived anyway.
That article reminds me of that Echoes of the Eye DLC for the video game Outer Wilds. If you like infuriatingly twisted puzzles that make Myst look like child's play, take a look at the Radio Tower northeast of the Village. If you can get far enough to find the unburnt 1st slide reel in the Endless Canyon Forbidden Archive, you'll know what I mean.
@anandamide If colonizing would be taken seriously by _anyone_ we would already try to build self substaineable outposts in those non habitable zones described in the article. There would be already a biosphere v12 in antartica ongoing. Since even this is not happening, its just cheap talks
@anandamide That Mars fantasy helps some people rationalize not caring for the Earth, so pieces like this can't come too soon.
@anandamide
See also "A City on Mars" by Kelly & Zack Wienersmith
@anandamide I dislike sharing information that might delay Musk and other millionaires from departing

@anandamide @frumble to sum it up: no matter how bad we fuck up our own planet (and wie are REALLY gold at that - and wie can become even better)

It will NEVER be easier to make another planet able to sustain us than it is to terraform earth back to a usable status.

No, not even if we make it a post-apocalyptic wasteland AND eradicate ALL living things down to even single celled organisms!