Part 2/8:
The discussion begins with an exploration of the significance of cracks in electrodes, which serve as critical initiators for various processes at play. Greene describes how, despite observing the cracks and their serrated edges that results from bull lightning, the visual activity at the surface of the material appears minimal. It's emphasized that while one might anticipate observable reactions above the cracks, what is typically seen is merely a scattering of debris from the anode rather than any overt signs of energy or activity.