Re:What about precision??? (Score 2, Insightful)

I did RFTA, and they don't actually run the simulation on the graphics card. On the contrary, they had to downsample the data from 320^3 to 256^3 just to fit it into the GPU's memory. All they did in the GPU was a bit of post-processing (and the rendering, which looks nice enough).

In a more general sense, I wouldn't "trust" the result of a hydro-only simulation of a SN explosion in any detail. Too much physics left out, and a lot of chaotic dynamics which are only barely resolved (or not at all). An experiment like this is indicative of the likely behavior of a general class of models, but it's not a prediction.