The crucial point in thinking about this is to realize that every time you combine a different egg with a different sperm ? you end up with a different person, right?

考虑这个问题的关键一点是,明白每一次,你把一个不同的卵细胞和一个不同的精子结合,都会产生一个不同的人，对吗？

耶鲁公开课 - 死亡课程节选