Idealized experiments show that a physical measurement involves three stages: initial state preparation, perturbation and examination for the probability that a particular final state is occupied.
Thermal convection within the earth's crystalline mantle provides a mechanism for large‐scale surface displacements. Oceanic ridges occur where the flow of convection cells comes up to the surface; trenches occur where it descends again.
Even when successive effects are not additive but rather multiply each other (as do amplification and absorption), we need additive units for convenience. Here are suggestions for simplifying nomenclature and avoiding confusion.
As gases condense into liquids and then solids, an order pattern develops in position space. Both superconductivity and superfluidity can be viewed as condensations in momentum space. Possibly life itself is an order pattern, perhaps in both spaces at once.