In quantum physics, the Heisenberg uncertainty principle states that one can not assign, with full precision, values for certain pairs of observable variables, including the position and momentum,
of a single particle at the same time even in theory.
In simple words, the ergodicity hypothesis states that in an ensemble of particles, the
motion of a single particle is representative for the entire ensemble.
He offers an analogy from physics: Although the
movement of a single particle looks random, «the behavior of a gas made up of millions of particles is very predictable.»
The fuzzy quantum shape that describes the speed or
location of a single particle, its wave function, has now been directly measured in the laboratory, giving this mathematical concept a small dose of reality.
Usually, only the wave
properties of single particles play a role, but now researchers at the Vienna Center for Quantum Science and Technology, Vienna University of Technology have succeeded in quantum mechanically controlling hundreds of Rubidium atoms of an ultracold Bose - Einstein - condensate by shaking it in just the right way.
But these models require computer «averaging» of data from analysis of thousands, or even millions of like molecules, because it is so difficult to resolve the
features of a single particle.
It works well as metaphor but it isn't merely a signifier for something like the dissipating energy of a dying sun, or the
path of single particle, it has its own mute narrative and peculiarity, making a place for itself within the everyday weirdness of the world.