It's been a long time since there has been any deflation in the US dollar. So both parties knew the contract would be paid back in devalued dollars. The only question was how large the devaluation would be.
Well, then, now you see the true crisis we are facing.
Who in their right minds will write a contract and get paid back with something that is worth less?
And such must ALWAYS happen in a system that is interest based. We were warned against usury a long, long time ago.