StringJunky Posted March 12 Share Posted March 12 4 hours ago, MigL said: When people, or Physicists, speak of 'geometry' or 'fabric', are they referring to the model or the actual space-time ? All we know is that a model, incorporating 'geometry', or curvature if you will, manages to very accurately predict what happens with test masses in actual space-time. We have no idea whether the 'reality' of actual space-time, or its 'fabric', incorporates such curvature. But the mathematical model, which is GR, does utilize geometry, also mathematical, to make its extremely accurate predictions. Are you maybe mistaking the model for any undelying rality, Lorentz Jr. ( which we may possibly never know ) ? Is the curvedenature of spacetime just a mathematical abstraction that happens to model mathematically as a curve on paper, its actual manifestation is something competely different and not mirrored verbatim enough in our 'commonsense' view. Link to comment Share on other sites More sharing options...
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