**E**ach
**X**tra
**P**hysical
**E**vent
**R**ealizes
**I**nteresting
**M**anifestations
**E**merging
**N**ew
**T**eachings

Given the fact that no system is truly closed, it is not always possible to prove certain things. But usually we come up with a theory, and from this theory and our knowledge of Nature's laws we can imagine experiments with which to prove certain predictions the theory implies.