It had always been said that we were identical, but that must have been an overall impression, our aura, because if you took us feature by feature there was very little similarity. The only thing was possibly the eyes, which both of us inherited from mum. Yet when I moved to Bergen and met Yngve's more peripheral acquaintances they would sometimes ask, 'Are you Yngve?' That I was not Yngve was obvious from the formulation of the question, because if they had thought I was, they clearly would not have asked. They asked because they found the similarity striking.

karl ove knausgaard, Karl Ove Knausgaard - A Dea…, loc. 1967