is that which is experienced.
of Reality: For two millennia, there has been the idea in physics that the way to the simple one is the way to spatially small things, to ever smaller particles. This idea was successful up to the atoms, i.e. as long as only electromagnetic interaction and gravitation needed to be considered. But then, reflective thinking showed that the “smallest particles as basis of reality” were a blind alley. Planck’s formula E = hc/λ makes it intelligible that the smaller the postulated and experimentally produced particles are, the faster they decompose and the more complex the related theories become.