LUKE: Believe me, I’m the Einstein of the clan.
Albert Einstein (1879-1955), German-born theoretical physicist, widely acknowledged as one of the greatest physicists of all time. Einstein is best known for developing the theory of relativity, but he also made important contributions to the development of the theory of quantum mechanics – relativity and quantum mechanics are the two pillars of modern physics.
His intellectual achievements and originality resulted in the name “Einstein” becoming synonymous with the word “genius”, so that Luke is saying that he is the genius of his family. In fact, Jess looks to be the genius of the family we know so far, and in a future season, Luke will meet a previously unknown relative who appears to be the real family genius.