What it is
Simulation sits between physics engines, digital twins, synthetic data, and policy testing.
Why it matters
Physical experiments are slow and can be unsafe; simulation lets builders iterate before touching hardware.
How not to overread it
A simulator is an approximation, not the world.
Related edges
Physical AI
Robot training and validation
Simulation is an approximation.
World foundation models
Model-assisted simulation
Generated world behavior is not physical proof.
Physics engine
Dynamics simulation
Engine fidelity is task-specific.
Digital twins
Environment modeling
A stale twin misleads.
Sim-to-real transfer
Training to hardware
Transfer requires real-world measurement.