Can we conclude from the argument from recycling and the fact that the engine is a prior existing part from which the car was built, that the engine will continue to exist forever after the destruction of the car.

能否根据源于轮回的论证以及,发动机是汽车成形之前就,已经存在的部分这一事实，得出结论说发动机能够在,汽车毁掉后还继续永远存在。

耶鲁公开课 - 死亡课程节选

It's not forever because it terminates after 2T periods of six-month interval each.

债券不是永续的,券息每六个月为一期,共支付2T期

耶鲁公开课 - 金融市场课程节选