ho na le bopaki bo bongata ba saense bo pakang hore ho enta ke mokgwa o motle wa ho thibela ditshwaetso tse kotsi thata.

kukho ubungqina obunga phikisekiyo bobunzululwazi obuthi ukugonya yeyona ndlela ihamba phambili yokuzikhusela kusuleleko olunzima.
