This is because those who, in the past and in some cases still, are engaged on the heavy physical work of stowing cargoes are converted into the masters of even more advanced technology and organisation.
Kungenxa yokuba abo, kumaxesha adlulayo nakwezinye izehlo ezi zenzekayo, beqhubekeka besebenza nzima kumsebenzi wokufaka lo mthwalo wezithuthi, yaguqulelwa kubuchule bokuqhubeka phambili kwezolwazi ngobugcisa jikelele nakumbutho.