Fanfan, gourours on Nostr: And they went all in on making the most realistic possible numerical model of the ...

And they went all in on making the most realistic possible numerical model of the Sun, in a sphere, with realistic rotation, luminosity, radial structure, capuccino-latte-vanilla flavoured convection, you name it, the whole shebang. But numerics is a hard mistress and, well, in the end they had finite resolution too, and so it was. Their simulations produced a dynamo effect (sometimes), and cycles (not always), but they were all over the place, and not two groups agreed together on what was going on. There is also a lot of dubious numerical cooking recipes involved to simulate the implicit effects of all the swirls that you can not explicitly resolve, and everyone has their own cooking recipe (that's still the case).

This industry is still going on and flourishing, and this is the kind of things it delivers these days. Not bad, eh ? This is a japanese-american thing this time, which run on a BBBBIIIIG supercomputer. 500 millions CPU hours were spent on this one simulation, I was told (not a typo, 5 with 8 zeros after).

https://www.nature.com/articles/s41550-021-01459-0