Yay! Nobody Cares about Tickle Me Elmo Musk

Veritable Quandry

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Yeah. 2030s is a Musk prediction like everything Tesla has "next year." Part of what I was pointing out is there are still many technical points to work out at a very basic level and major problems to solve before any serious attempt at a manned Mars mission.
 
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GoblinCampFollower

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Yeah. 2030s is a Musk prediction like everything Tesla has "next year." Part of what I was pointing out is there are still many technical points to work out at a very vasic level and major problems to solve before any serious attempt at a manned Mars mission.
As a reminder, his first prediction was for 2024....
 

Argent Stonecutter

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Once we've reached Mars, we'd start constructing more habitats in its orbit and only go down to the surface for scientific reasons and resource extraction because the space habitats will be so much more liveable.
Like in Niven's early Known Space stories, where the Belt was colonized and so was Luna because it was convenient to the Earth, but Mars was just a hole. Too much atmosphere to ignore but not enough to actually be useful.
 
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Veritable Quandry

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And in a rocket ship that looks like it was designed by science fiction writers in the 1950s.

Elon has said (...ugh...) they plan to spin the rocket on its journey to generate pseudo-gravity through centrifugal force. To simulate the gravity of Mars (1/3rd of Earth), Starship needs to rotate 8 times a minute (my math could be wrong, but it'll be something like that). Ignoring all the engineering and logistical issues involved with this idea, experiments in the 1960s showed that rotation rates above 3-4 RPM might be difficult for us to adapt to. In something with a mere 15 foot radius like Starship, people's heads, when standing, would experience far less gravity than their feet will!
If your body goes through the center of rotation you get opposite gravity on your head and feet.
 
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Jopsy Pendragon

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The human body is incompatible with non-terran living conditions... The first viable "Martian" will likely be an AI, avoiding the whole "total recall" labor issues. ;)
 
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Casey Pelous

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And in a rocket ship that looks like it was designed by science fiction writers in the 1950s.
Whoa, now! Are you saying that like it's a bad thing?
 

Kamilah Hauptmann

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Now now, you know many of them have barely read anything about economics. They just know just enough libertarian theory to think they know they don't need to pay taxes.
Horseshoe theory where libertarianism meets communism. :)
 

detrius

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[...]As for the practicalities of the Mars Colony: It's just a basic fact that we are not anywhere close to having the level of technology needed to make this practical. Many things are possible long before we have the ability to make it cost effective. A Mars Colony would be the biggest money pit in history. I suspect even Musk's crazy ass knows this and mostly talks about it to build "hype" for himself among his idiot followers.
Like in Niven's early Known Space stories, where the Belt was colonized and so was Luna because it was convenient to the Earth, but Mars was just a hole. Too much atmosphere to ignore but not enough to actually be useful.
Basically, what this means is that in order to reach other planets, we'd have to develop technology that makes colonizing and terraforming those planets unnecessary.

I recall reading a concept of using a teather between a crew capsule and a supply capsule so it would spin on a much longer radius. I don't remember if that was the same article that proposed using tanks of nutrient soup to protect the crew from radiation in transit by putting them around the quarters.
The titular spaceship from Andy Weir's "Project Hail Mary" uses that concept to generate gravity. Are you referring to that story?
 

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Basically, what this means is that in order to reach other planets, we'd have to develop technology that makes colonizing and terraforming those planets unnecessary.
This is mostly true. If we have the tech to terraform Mars, we can fix any kind of environmental disaster on Earth. Although, if we actually were to develop the level of technology needed to make Venus, or Mars or beyond habitable in a cost effective way, it might be fun to do it just for the heck of it. I could see it happening one day, but not anytime soon.
 
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GoblinCampFollower

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I'm sure it will happen eventually, but I'm also sure that it is technologically at least 50 years away.

There's also an argument to be made that Venus might be a better option: Forget Mars: Let's Terraform Venus Instead!
I was also thinking of the below video in my post. I really think that Mars is mostly a waste of time. I really think most of the exploration we do of Mars will just keep showing it's a boring rock.

 

Veritable Quandry

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The titular spaceship from Andy Weir's "Project Hail Mary" uses that concept to generate gravity. Are you referring to that story?
This would have been a while back, probably in the 90s in a popular science type magazine.
 
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Now that I'm grown up they came up with this book
How men are from Venus and women from Mars
I guess I always knew that and here's the best part
I drive my car from Saturn and I dyed my hair green
I'm still from Neptune
 

Innula Zenovka

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I'm sure it will happen eventually, but I'm also sure that it is technologically at least 50 years away.

There's also an argument to be made that Venus might be a better option: Forget Mars: Let's Terraform Venus Instead!
As I understand it, Venus currently has no oxygen in the atmosphere, has surface temperatures hot enough to melt metal and has a surface pressure equivalent to that in the deep ocean on Earth.