By using 2.Na3 to fight against the Sicilian, White obviously wants to depart from the well-trodden paths as soon as possible. But avoiding a theoretical debate doesn't mean they can't hope for an opening advantage - if their opponent reacts weakly to the harmless-looking knight-move. You will see throughout these videos that some outwardly logical follow-ups by Black may indeed lead to an objective white edge. At any rate, complex middlegame positions often arise, with few early trades, which are therefore suitable to test the opponent's skills (rather than their memory!) and play for a win.