Waves, Particles, Stocks and Dollars

I can't remember the exact context in which initially I read about this. Apparently, all matter has both wave and particle-like properties.

I started thinking about this in relation to my stock portfolio which fluctuates so much from day to day and week to week. If my stocks went up $1000, should I go out and spend $500 comfortably, knowing I still had half my profits left? But what happens when it goes back down then?

At the same time, your portfolio is worth what it's worth at any given moment in time, and that $1000 gain is real assuming I wanted to realize it. So stocks are like matter in that they have this duality about them - they're a fluctuating wave, and also a particle. Once you sell, you get particles (dollars). Of course, those also have wave-like properties as the currencies rise and fall.

I suppose the wave/particle duality paradigm is useful for looking at a lot of phenomena, and it helps us embrace fluctuation and inconstancy more comfortably. Which is good given that we ourselves are particle/waves, too.