Contract law rests on a simple but powerful premise: when a party breaches, the law protects the injured party’s expectation interest, placing them, as nearly as possible, in the position they would have occupied had the contract been performed. This principle underlies the theory of efficient breach, which tolerates economically rational breaches so long as the non-breaching party is fully compensated. But in bankruptcy, this foundation often collapses. Under section 365 of the Bankruptcy Code,