Amawasha ayizingxenye ezibalulekile ezisetshenziswa ezinhlobonhlobo zezimboni nezinhlelo zokusebenza ukusabalalisa umthwalo, ukuvimbela ukuxega, nokuhlinzeka ngobushelelezi bezinto zokubopha. Ngesipiliyoni seminyaka engaphezu kwengama-30, siyaziqhenya ngokuba ngumkhiqizi ohamba phambili wamawasha wekhwalithi ephezulu.