Watching 3 body problem and remembering a nitpick I have with it (spoilers for the VR game plot)
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!
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).
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.
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.
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.
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.
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?"
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 in addition 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.
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.
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.
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? )
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.