What it is
Physical agents need fused state estimates because no single sensor captures all relevant physical variables.
Why it matters
Robots fail when perception and state estimation disagree with contact, pose, or dynamics.
How not to overread it
Sensor fusion quality is constrained by calibration, timing, noise, and occlusion.
Related edges
State estimation
Robot state
State estimates must expose uncertainty.
ROS middleware
Sensor and actuator messaging
Integration quality depends on timing and calibration.