This weekly roundup thread is intended for all culture war posts. 'Culture war' is vaguely defined, but it basically means controversial issues that fall along set tribal lines. Arguments over culture war issues generate a lot of heat and little light, and few deeply entrenched people ever change their minds. This thread is for voicing opinions and analyzing the state of the discussion while trying to optimize for light over heat.
Optimistically, we think that engaging with people you disagree with is worth your time, and so is being nice! Pessimistically, there are many dynamics that can lead discussions on Culture War topics to become unproductive. There's a human tendency to divide along tribal lines, praising your ingroup and vilifying your outgroup - and if you think you find it easy to criticize your ingroup, then it may be that your outgroup is not who you think it is. Extremists with opposing positions can feed off each other, highlighting each other's worst points to justify their own angry rhetoric, which becomes in turn a new example of bad behavior for the other side to highlight.
We would like to avoid these negative dynamics. Accordingly, we ask that you do not use this thread for waging the Culture War. Examples of waging the Culture War:
-
Shaming.
-
Attempting to 'build consensus' or enforce ideological conformity.
-
Making sweeping generalizations to vilify a group you dislike.
-
Recruiting for a cause.
-
Posting links that could be summarized as 'Boo outgroup!' Basically, if your content is 'Can you believe what Those People did this week?' then you should either refrain from posting, or do some very patient work to contextualize and/or steel-man the relevant viewpoint.
In general, you should argue to understand, not to win. This thread is not territory to be claimed by one group or another; indeed, the aim is to have many different viewpoints represented here. Thus, we also ask that you follow some guidelines:
-
Speak plainly. Avoid sarcasm and mockery. When disagreeing with someone, state your objections explicitly.
-
Be as precise and charitable as you can. Don't paraphrase unflatteringly.
-
Don't imply that someone said something they did not say, even if you think it follows from what they said.
-
Write like everyone is reading and you want them to be included in the discussion.
On an ad hoc basis, the mods will try to compile a list of the best posts/comments from the previous week, posted in Quality Contribution threads and archived at /r/TheThread. You may nominate a comment for this list by clicking on 'report' at the bottom of the post and typing 'Actually a quality contribution' as the report reason.
Jump in the discussion.
No email address required.
Notes -
Obtaining rare earths in a place where the toxic lakes the size of Delaware don’t matter would certainly be a benefit for the environment. If we can stop being retarded about building nuclear uranium supplies might be worth it too.
But I’m unclear on the economic incentives behind space travel. Mars and Venus are the most terraformable planets and would still require centuries worth of government subsidies. Without FTL(let’s say heim theory turns out to be true, or there’s a breakthrough that develops a working Alcubierre drive, or someone figures out how to build a krasnikov tube) there’s no shirtsleeve environment out there, so people don’t want to live there. You might wind up with the equivalent of oil rigs in space but I doubt you’ll have major colonies.
Couldn't we also find this stuff on the moon? Why not the moon? I would presume every crater has something interesting at its center. It just seems like the most obvious place to start but I rarely see it mentioned or discussed.
I'm not super up-to-date on all the latest space exploration talk, so maybe someone can give me the tl;dr.
More options
Context Copy link
I will point out here that lithophile elements are literally the worst things to get from space as far as relative difficulty of mining them goes. Atmophiles are found in much-greater quantity in the outer system. Siderophiles (which include literal gold) are far more accessible on asteroids because on Earth they sank into the core. But lithophiles (which include rare earths and actinides) are strongly concentrated in the crusts of planets; Earth is a great place to find them, only matched by other rocky, differentiated bodies (which have notable gravity wells and frequently atmospheres greatly increasing the expense of sending stuff back).
Ok, sure, bad example. But there’s resources(uranium, osmium) and industrial processes(titanium smelting) that genuinely make more sense in space once costs come down. Just that those economic justifications aren’t good reasons for permanent habitation.
Uh, uranium's an actinide (and thus lithophile), the thing I just said is highly concentrated in Earth's crust (see e.g. here for Sol System vs. here for Earth's crust; note that this somewhat understates the effect because both are normed to silicon being 10^6 and silicon is mildly concentrated in the crust compared to undifferentiated rocky bodies/epically concentrated in Earth as a whole compared to icy bodies). Sorry if that wasn't clear.
The yellow region in the second graph is the highly-siderophilic elements (plus tellurium), which are strongly depleted in the crust, and indeed osmium's one of them.
More options
Context Copy link
More options
Context Copy link
More options
Context Copy link
Wrong. The human will and imagination will make it happen. As we advance in technology this will become easier and easier.
First Mars, then the stars.
Ok, but terraforming Mars takes what, 100 years minimum? Who's going to keep funding going for that for 100 years when it definitionally doesn't earn a return?
I guess there could be a structure such that running oil rigs in space requires taxes to fund a terraforming project. But whoever those taxes get paid to has every incentive to iron law of bureaucracy those taxes into conferences in the Bahamas about current thing in terraforming.
You could fund the terraforming of Mars by leveraging the equity of the total value of the theorized real estate.
In other words, a mortgage the size of a planet.
Except that, even after spending trillions in Terraforming Mars, you'd end up with land worth less than land than Earth due to extreme cold, proximity to amenities, ability to grow things, etc. No one but crazy rich people would want to live on Mars until Earth becomes largely uninhabitable.
More options
Context Copy link
More options
Context Copy link
More options
Context Copy link
More options
Context Copy link
More options
Context Copy link