Urumva ko n'ivangurana (segregation) ryabayeho kuva kera, turetse kubyitirira abazungu. Ni nde wavukanye imbuto zo gutegeka ko kuvukana amasaka bitabaho mu binyabuzima? Izi zose ni systems abantu bashyiraho bakazishyigikira ngo abantu bumve ko zitahimbwe/zitashyizweho (imagined) kubera inyungu zabo bwite ahanini. Yuval Noah Harari yabigarutseho mu gitabo cye.