Hair-raising animation won this Googler an Academy Award

Simulation is a tough computational issue, as it attempts to recreate a constant physical world using a minimal amount of calculate power. To make the real life processable by computer systems, designers of a simulation need to “discretize” or piece the world into coarse pieces and calculate the physical interactions in between those coarse portions. Within those pieces, simulation designers need to “parameterize,” or make presumptions about the habits of the world, as computing the physics beyond this point would be too expensive. The art of simulation is tuning these assumptions and balancing the accuracy, scale and expense of the recreation of the physical world.

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