site banner

Friday Fun Thread for March 29, 2024

Be advised: this thread is not for serious in-depth discussion of weighty topics (we have a link for that), this thread is not for anything Culture War related. This thread is for Fun. You got jokes? Share 'em. You got silly questions? Ask 'em.

3
Jump in the discussion.

No email address required.

So I've recently watched the Netflix adaptation of The Three-Body Problem. One of the central plots of the show (and from what I can gather, also the book series) seems to be disappointingly half-baked, especially considering that the plot device is the namesake of the show and the title of the first book.

Something that's established early on is that the San-Ti (or the Trisolarans) live in a chaotic three-body (really a four-body) system that can't be predicted, and despite having the capability to enter into lungfish-like dormancy their civilisations kept being wiped out due to not being able to predict when destructive climatic shifts would occur. You could, however, probably predict the chaotic orbits of three bodies solely through simulation, the aliens would probably be capable of this. The issue for us and why it is "unsolvable" is that there’s no simple one size fits all solution where you can plug in initial starting conditions and predict the state of three bodies at any point in time - but you can move each ball a little bit as a small amount of time passes, and then recalculate.

Of course, methods which iteratively compute position can and do deviate from reality, a small error can result in large deviations in the model over a very long period of time, but you can minimise error to a very high degree. And if you’re living on the planets themselves, you can constantly update the state of your simulation every time your model observably deviates from reality. So an iteratively computed model, continuously updated to align with current state, would probably help them avoid dying off at any given point, because T = 0 keeps being reset and you only ever need to calculate T + 1.

Note also, these are aliens that can unfold a photon’s higher dimensions, inscribe a supercomputer onto it, fold it back down, send it to a target site then communicate instantaneously with it via quantum entanglement. Aliens capable of incomprehensible space magic aren't capable of simulation, apparently.

As it happens the book was in stock at my local used book store the last time I was there. I haven't seen the show at all, but have watched Quinn's summary of the first episode.

In the first book, everything we know about the aliens comes from a computer game created by their human allies intended to introduce the aliens history and culture to humanity slowly. So it's mostly focused on the alien's ancient history (the periods when they learned more about their solar system).

By the end it's not explicitly stated but is hinted at that the aliens developed the ability to simulate their system and model it which is how they could advance to the level of dimensional folding and interstellar travel. They were thriving in the peaceful periods but their planet only had a couple centries until their planet would be trapped by one of the sun's and fall into it being utterly destroyed.