[HN Gopher] Cosmic simulations that once needed supercomputers n...
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       Cosmic simulations that once needed supercomputers now run on a
       laptop
        
       Author : leephillips
       Score  : 48 points
       Date   : 2025-09-23 13:11 UTC (2 days ago)
        
 (HTM) web link (www.sciencedaily.com)
 (TXT) w3m dump (www.sciencedaily.com)
        
       | thatjoeoverthr wrote:
       | Google has also a global weather model yielding by ten day
       | predictions, and open street map runs local as well. Just today
       | with GraphHopper and a map of Europe I can generate 2700 routes
       | per second on my workstation. When I was young these were not
       | things you could run at home!
        
       | JumpCrisscross wrote:
       | The emulator: https://github.com/CosmologicalEmulators/Effort.jl
        
       | observationist wrote:
       | Moore's law surprises people _way_ more than it should by now.
       | This is an awesome project!
        
         | crazygringo wrote:
         | This has nothing to do with Moore's law. It's about neural
         | networks.
        
       | crazygringo wrote:
       | > _The breakthrough combines neural networks..._
       | 
       | This is the important part. It's not guaranteed to be accurate.
       | They claim it "delivers essentially the same correctness as the
       | model it imitates -- sometimes even finer detail". But can you
       | really trust that?
       | 
       | It seems like a fantastic tool for quickly exploring hypotheses.
       | But seems like once you find the result you want to publish,
       | you'll still need the supercomputer to verify?
        
         | jacquesm wrote:
         | That 'finer detail' sounds suspiciously like inventing
         | significant digits from less significant inputs. You can
         | interpolate, for sure, but it isn't going to add any
         | information.
        
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       (page generated 2025-09-25 23:00 UTC)