n pl -ties
1. the state or quality of being two or in two parts; dichotomy
2. (Physics / General Physics) Physics the principle that a wave-particle duality exists in microphysics in which wave theory and corpuscular theory are complementary. The propagation of electromagnetic radiation is analysed using wave theory but its interaction with matter is described in terms of photons. The condition of particles such as electrons, neutrons, and atoms is described in terms of de Broglie waves
3. (Mathematics) Geometry the interchangeability of the roles of the point and the plane in statements and theorems in projective geometry
Items 2 and 3 are beyond - let's say for now - my ability to process. Item 1 seems to be the plinth from which my life rises. When I wonder at my fatigue, I need to remember how much energy it takes to maintain balance.
It is too soon to know much beyond the fact that duality not only exists but has hired the caterers, picked the music and arranged the lighting. I show up and hope I can find my place card.
This is not a new theme. It has been shouting at me in its outdoor voice, growing more and more insistent, inescapable, for at least six months. I hope the condition becomes less dizzying over time. I more than half suspect this is the natural order of things. It gets so little press because - then what?
As my friend Patricia once said, "Hang on to your sunsuit straps." We are in unknown territory.