Origin of ~ : the underlying principle of approximate equivalency

Origin of the underlying general principle of approximate equivalency, symbolized as ~  : an alias for the underlying general principle of structured~duality...

Many readers seem to track on the structure or structuring part of the underlying principle of structured~duality, but often, people don't seem to feel comfortable embracing "duality" as a core foundational item (despite ALL the wave-particle, one-half spin attraction-repulsion evidence).

In an effort to seek and explore options (and alter bandwidth)  I've been considering abbreviating the term structured~duality  just to ~, which would give "the principle of ~".  Would that be pronounced "principle of tilde", or simply "principle of squiggle, that is, shift-the key left of 1 on your keyboard".

A search for the ascii value of tilde on Google,  beside showing 126, brought up the term "equivalency", and a search on "principle of equivalency"  did raise some hits and with the similar principle of equivalence.  A search on the full phrase yielded:

Your search - "principle of approximate equivalency" - did not match any documents.

So, it's an option, something  for people who see all the underlying inter-transforming multiple-states but who don't necessarily track on thinking of the underlying principle of structured~duality. Yes, it's true, collections of hydrated ions are approximately equivalent with all their transition states and paths and with their pre- and post equilibrium reaction products. It's all multiple-states jumping between multiple-states. Various dances of structural codings.

I believe if one peers into the term "approximate equivalency", it turns out to be a helpful, informative term and a decent alias for ~ and structured~duality.

Think about it.