Mutable laws

One hears the term “Laws of Physics” as if punishment awaits anyone or anything that dares to break them. And, yet, we know these so-called laws may be only approximations of reality – limited by the accuracy of our measurement tools and experimental capacity to validate their predictions. Every scientist must be prepared to cast aside or revise a pet theory if measurement and observation contradict it.

Another from Vint Cerf's written testimony for the U.S. Senate Committee on Commerce, Science, and Transportation. This has echoes of George Box's assertion that all models are wrong, but some are useful.