From maximum force to the field equations of general relativity -- and implications

Understand

There are at least two ways to deduce Einstein's field equations from the principle of maximum force $c^4/4G$ or from the equivalent principle of maximum power $c^5/4G$.

• Tests in gravitational wave astronomy, cosmology, and numerical gravitation confirm the two principles.
• Apparent paradoxes about the limits can all be resolved.
• Several related bounds arise.