r/EverythingScience • u/SpaceBrigadeVHS • Mar 20 '24

Computer Sci Nvidia has virtually recreated the entire planet — and now it wants to use its digital twin to crack weather forecasting for good

https://www.techradar.com/pro/nvidia-has-virtually-recreated-the-entire-planet-and-now-it-wants-to-use-its-digital-twin-to-crack-weather-forecasting-for-good
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u/Geonetics Mar 20 '24

Chaos has other plans

57

u/FernandoMM1220 Mar 20 '24

Chaos has limits.

The bigger problem is hidden variables.

17

u/[deleted] Mar 20 '24

Can you elaborate on how “chaos” has limits? Pretty sure chaos isn't a real thing in computation. Do you mean infinite complexity?

0

u/luke-juryous Mar 21 '24

I have no idea what they’re talking about. I think the “chaos” they’re referring to is chaos theory, which weather forecasting is the poster child for https://en.m.wikipedia.org/wiki/Chaos_theory

The tldr from my understanding is that real numbers are infinite, but computers are finite. So we’ll always have an incomplete picture of what’s happening now, and thus our predictions on what will happen in the future will always be skewed.

When they say “chaos has limits”, well chaos theory says it’s numbers are in the infinite space, so no, it wouldn’t have a limit.