text: “Ukulutheka kuyisifo sokuthatha izinqumo; abantu abaningi banezinqubo ezibuchosheni eziqinile zokwenza izinqumo ezibagcina bekwazi ukumelana nokunqotshwa ukulutheka,” kusho u-Antoine Bechara, umbhali ohola phambili embikweni nososayensi wezengqondo eNyuvesi YaseNingizimu California.