Limithetho yokuphindukuzalwa ivezwa ngobulukhuni ngokuya ngezidingo zesayensi yanamuhla nangokuya ngomqondo womhlaba eNtshonalanga. Isahluko sokugcina sinikeza incazelo yendlela engaphakathi engathathwa yinoma ngubani ofisa ukuvusa kuye amandla afihlekile okubona okuphezulu kwendawo yonke.