Maybe closed timelike curves aren't closed at all?

也许闭合的类时间曲线根本不是闭合的？

In a closed timelike curve, when you travel to the past, you've always been a part of that past.

封闭的时间曲线中，当你去，你就直是去的部分。

Without getting into too much detail, a time machine like a Tipler cylinder could create a closed timelike curve.

简单来说，像提普勒柱体这样的时间机器可以创造出封闭的时间曲线。

We don't understand quantum physics enough to know if these closed timelike curves could or couldn't exist.

我们对量子物理学的了解还不够，不知道这些封闭的时间曲线是否存。