you imagine two nodes as two small “regions of space,” these two regions will be separated by a small surface. The size of this surface is its area. The second quantity, after the volume, which characterizes the quantum webs of space, is the area associated with each line.* The area, just as in the case of the volume, is a physical variable and has a spectrum that may be calculated using Dirac’s equation.* Area is not continuous; it is granular.
