week 7: Discussion .. There are a few difficult ethical situations that Kant has discussed

Hello, I hope week 7 is going well for you!
There are a few difficult ethical situations that Kant has discussed, he has used unique example to prove his point. Consider this specific example:
Suppose you need to borrow money, but it will be lent to you only if you promise to pay it back. You realize however that you will not be able to honor the debt. Is it permissible for you to promise to repay the money, knowing you will not keep the promise? Kant argues that doing so is not permissible, because thinking about universal applicability principle the aspect that promises could be made with no intention of keeping them then the practice of promising would be destroyed.
Steven M. Cahn, ‘Exploring Ethics’ pg. 79
Let me know what you think about this example?