this post was submitted on 10 Apr 2024
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chapotraphouse

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So the computer based solution proposed by Newton and Turing is rejected because the system is chaotic, meaning a general solution will always diverge from reality.

What I don't get is: this should still be good enough Run your solution every month or so, with updated measurements, and you'll have an ongoing "forecast" of conditions.

I'm referencing weather because that's we do. A weather forecast is a prediction of a chaotic system, but of one which changes every day or so. Prediction difficulty is dependent on local conditions and weather type, but we can still make predictions.

A gravitational system of 4 mutually interacting bodies is muuuuuch simpler than weather, and could be predicted far enough in advance to let a civilization adapt and persist!

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[–] [email protected] 12 points 8 months ago (3 children)

I've heard that in reality a system with three stars will collapse into a two-star system within human time scales anyway

[–] [email protected] 8 points 8 months ago

Yes this is true.

[–] [email protected] 3 points 8 months ago (1 children)

Three Body Problem is a very silly story.

[–] [email protected] 5 points 8 months ago (2 children)

No sillier than Star Trek, and the more I learn of it the more I want to read it

[–] [email protected] 4 points 8 months ago (1 children)

It's neat! The science stuff often just magic to justify the story, but a lot of the ideas are neaalt and it's an easy read. There are some occasional weird moments, but it's also a quick read so not a huge time investment.

[–] [email protected] 2 points 8 months ago

I'm putting it off for the same reason as Iron Council: I'm under a lot of stress right now and don't need to immerse myself in horror and depressive fiction. I haven't even done my Unmasking Autism book club post I wanted to make last week.

[–] [email protected] 2 points 8 months ago* (last edited 8 months ago)

It’s not for everyone and I can understand why some won’t like it.

On its own, it’s quite an interesting sci-fi though it has some of your typical Chinese boomer nationalist brainworms.

But it helps to understand why it has gained such a cult status in China (even among the highest bureaucratic circles). The book was written in the early 2000s when China was much weaker both militarily and technologically and it reflected the anxiety of a rising country/civilization that is surrounded by much stronger imperialist powers with hostile intentions, and the various attitudes of the Chinese society toward it (some people think we should just open up and embrace the Western world, some think we should be cautious about it. Very common views about Americans and the West up until Trump).

In fact, in Ball Lightning

spoiler for Ball Lightning, which is a prequel and set in the same universe but has little overlap with TBP main plota war broke out between US and China. So in the TBP universe the US and China had already fought a war which ended in a very “interesting” way.

[–] [email protected] 1 points 8 months ago

Well, alpha centauri is a 3 star system in reality. 2 sun like stars orbit each other and a red dwarf orbits 13000 AU away from them, which is really far away, but happens because the red dwarf is so much less massive than the other two. The two stars will be orbiting close to their center of mass and barely feel the gravity of the red dwarf. So the center of the star system is the pair and planets would orbit them. Nasa says the biggest worry fo life in this system would be the x-rays emissions by proxima centauri (the red dwarf).

[–] [email protected] 8 points 8 months ago

Book spoilers.

That is not the reason why they had to leave their home planet. In fact, their calculations could go pretty far, but it also predicted that the planet will eventually become engulfed by one of the stars.

They further corroborated this with the observations that there used to be multiple planets in their star system (which have all since been engulfed by the stars) and the one that they are living on has been cracked into two by the last great cataclysm which further deteriorated whatever conditions it was on the original planet.

[–] [email protected] 5 points 8 months ago (1 children)

Most of us can survive most of the weather most of the time, for now. Getting slingshotted deep into space or into another celestial body is like a category 999 hurricane; nothing's going to be able to adapt.

[–] [email protected] 3 points 8 months ago (1 children)

Well yeah, I guess I just don't like how it's waved away as useless when there's very real civilizational utility in being able to predict orbits with e.g. 99% accuracy out to like 2 months.

[–] [email protected] 2 points 8 months ago* (last edited 8 months ago)

The video game stuff is meant to be an abstraction for a human audience, rather than directly showing what Trisolaris is up to. They're demonstrating that the computer is "useless" in preventing calamity, any other utility is irrelevant so they'd have had no reason to bring it up.

[–] [email protected] 4 points 8 months ago* (last edited 8 months ago) (1 children)

Don't expect a story without logical errors. It's there to entertain, no more no less. Just watch the series and try to ignore the plot holes, if you can. :)

Spoilers ahead.

Yes, it would be much more likely that the aliens come from a more stable star system, but that's not the case. It's also very likely that they would have invented a kind of sun forecast.

The alien supporters' ship is cut into thin slices with nano wires because they're afraid that otherwise the plot-device might be broken by explosions. That totally makes sense. 🤨
Also why would they use the canal in the first place? They are wanted and using the canal is expensive. It's not like they need to be somewhere soon, or do they?

The aliens are bragging that they have established total surveillance and control over humanity. And they show themselves to all of humanity on Sky TV - so that the people know exactly what's going on and can efficiently work on a solution.

[–] [email protected] 6 points 8 months ago (2 children)

I've read the trilogy already, but it's on my mind now from watching the new series. To your last point, I think the Trisolarans are not worried about remaining secret as the sophon lock on our technology guarantees we cannot stop them. Until we discover the deterrent of course.

[–] [email protected] 3 points 8 months ago* (last edited 8 months ago) (1 children)

The Netflix series have altered a lot of the book’s plot.

You remembered correctly about the books, the Trisolarians did not care about humans surpassing themselves as you mentioned the Sophons were already locking out their basic sciences. They were only worried about humans discovering the deterrent.

The show changed a few characteristics about the Trisolarians to make it seem much weaker than they should be. They are traveling at 1% light speed in the show! In the books, they were already reaching 10% light speed at that point.

[–] [email protected] 3 points 8 months ago (1 children)

They are traveling at 1% light speed in the show! In the books, they were already reaching 10% light speed at that point.

Technically their whole journey is at 1% light speed in the books, accounting for acceleration and deceleration - they take ~400 years to go 4 light years. I guess the show just couldn't be bothered to explain the mechanics of it.

[–] [email protected] 2 points 8 months ago

Yes, that’s true, but by forgoing this detail in the show, there are consequences in how to explain some of the later events.

[–] [email protected] 3 points 8 months ago (2 children)

But why risk anything if the survival of their species depends on staying more advanced? It would have delayed humanity if they had kept it a secret. It would have been impossible or at least much harder to find out what is going on and how to counter it. (Is it done for the story and the dramaturgy of it? Is them acting meaningfully sacrificed to make the story more entertaining for the viewer? )

[–] [email protected] 6 points 8 months ago* (last edited 8 months ago)

The LORD does not care. Let the bugs play their little games and try to find a way out. The sophons will prevent them from doing anything that could actually prevent the invasion.

In fact, them panicking and putting all their hopes on false promises might make things easier in the long run.

[–] [email protected] 2 points 8 months ago

Human authorities discover the Trisolarans via the ETO before the Trisolarans announce themselves. I guess at that point in the story the general public isn't aware but governments already are.

[–] [email protected] 4 points 8 months ago

I'm not sure what limits the sophon has. in the books, I thought it could gather all intelligence, hence the name, but physically could only interact on the extremely minute scale.

in the TV show, I don't understand why it can't just kill everyone, crash every plane, destroy all computers, and make all the main characters blind and give them hallucinations until they go insane.

[–] [email protected] 3 points 8 months ago

More a nitpick for the overall series, but if I were a swordweilder I'd just start terraforming Mars or Venus and constantly be saying, "Hey, what a lovely planet we're making. It could look like anything, be home to anyone. I sure do wonder if our interstellar neighbors would like to have it in exchange for us maintaining some autonomy? Maybe a mutual partnership? A jointly operated particle accelerator?"

[–] [email protected] 1 points 8 months ago

In the books they basically had the forecast system you talk about. The real problem was their most recent predictions showed their whole planet falling into one of the stars.