Bonding minimises voltage differences between exposed and extraneous conductive parts: conductive reinforcing in floors or walls of rooms with a shower or bath is bonded; conductive pool and spa structures connect to a pool bonding connection point, extended to fixed conductive items the bather could touch from the pool edge (within arm's reach); bonding conductor sizes follow the standard and other standards (telecommunications, PV, inverters).
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.