THE BACKGROUND
THE SCIENCE: THE DILEMMA
Standard Game Theory predicts that two "rational" people will always end up hurting each other. In the famous Prisoner's Dilemma, two suspects are separated. If both stay silent, they both win. But because they cannot trust each other, the "rational" move is to betray the other to save oneself. The result? Both get locked up. This is the Nash Equilibrium: a trap where following your brain guarantees a losing stalemate.
THE TORAH: UNIFIED SOUL
Yosef’s "Mechanism" proved that as long as the brothers operated by Giluyim (Logic), they were stuck in the Prisoner’s Dilemma, viewing each other as separate entities to be managed. Yehudah broke the stalemate by accessing Etzem (Essence). Chassidus teaches that Yechida is the highest level of the soul where all Jews are united as a single organism. By sacrificing himself for Binyamin, Yehudah revealed that there was no "me" vs. "you", only "us". He didn't win the game; he unified the players.