Simulation: The Third Pillar of Science
Traditional scientific and engineering paradigm:
Do theory or paper design.
Perform experiments or build system.
Too difficult -- build large wind tunnels.
Too expensive -- build a throw-away passenger jet.
Too slow -- wait for climate or galactic evolution.
Too dangerous -- weapons, drug design, climate experimentation.
Computational science paradigm:
Use high performance computer systems to simulate the phenomenon
Base on known physical laws and efficient numerical methods.