Nuke a Super Computer

I’ve never quite understood what is gained by more powerful computers in simulating nuclear explosions. It seems to me that once a critical level of granularity was achieved in the simulation space, increasing capabilities would produce no additional accuracy. The computers are way cool, though. Maybe that’s the point.
Ultrafast Supercomputer to Simulate Nuke Explosion

-Greg

(I think it’s because as the devices age the radiation and materials in the devices will transmute and stress the components and may cause unknown results. The device may fire, but the yeald may be too low or it may result in a dirty shot. -John)