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We need theories for global decision making like Risk Communication . These theories are made to live together. Balance is the index of this decision making.

Balance and Stability

Stability is not the middle point. Mathematically it is a firm point or Attractor . Because usual decision making tries to find maximum or minimum, we use different mathematics.

Theories of balance in the West

Control Engineering studies stability and controllability.

Quality Engineering studies unevenness. Both of them consider "stable is suitable".

Theories of balance in the East

Thoughts in the East deal with the balance. Chinese medical science use Yin-Yang and Wu Xing . It weakens the strong part or supplements the weak part.

It considers relationship and flow.

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