Practical example: your employment agreement has a non-compete clause. If 3 years later non-competes are no longer allowed in employment contracts, you won’t w

Practical example: your employment agreement has a non-compete clause. If 3 years later non-competes are no longer allowed in employment contracts, you won’t want to be suddenly unemployed because your employment contract is no longer valid. You’ll want the originally negotiated contract, minus the clause that can’t be enforced.