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--- public:rem4:rem4-20:simulation [2020/01/30 16:59] – thorisson
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+====Why We Need Simulation and When to Use it====
+|  Simulation  | Simulations that "tell a story of a system" by integrating several observable and non-observable variables into a coherent whole, they can act as proper scientific theories. \\ Simulations can also act as hypotheses when they concretize theories. \\ Simulations are the newest methodology that science offers in our study of the (natural) world.  |
+|  Model  | A //model// is a representation of a phenomenon. A model of the earth-sun system can be created by a ball and a flashlight. Simulations are an executable version of a model.  |
+|  Software Simulations  | Implement a //model// of a phenomenon as runnable code. The model, and its implementation as a simulation, are informed by a higher-level theoretical or philosophical stance (example: A materialistic view of the world).  |
+|  Verification / Grounding  | To ensure that the results produced by a simulation match to reality, a process of //grounding// must be performed whereby the truthfulness of the model implemented as a simulation is ensured to represent the phenomenon correctly. This process is difficult; typically only a small part of the full model is something that is well understood in the physical world. It is expensive because for any reasonably complex system this process takes time.  |
+|  When to use simulation  | When the complexity of that which is to be modeled/understood becomes so great that mathematical models are intractable, or when they are not possible for other reasons, and experiments with standard hypothesis falsification would take decades, centuries or millenia.  |
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