How Should We Think of Early Embryos?
I have encountered some skepticism about whether an embryo immediately after conception should be regarded as a separate human being. On one hand, it is preposterous to think that a fetus is an inanimate object a minute before birth but a full human being a minute after birth. On the other hand, some people cannot believe that a single cell can have rights. On the gripping hand, there is no clear dividing line.
The question of whether a fetus is a human being can be divided into two separate questions:
Is the embryo part of a human body?
The answer is clearly yes.
This is less clear. Fuzzy logic might be appropriate. You can think of the mother and child as two different beings with a fuzzy boundary in space–time. If you cannot believe that an embryo 1 second after conception is not a separate human being but an infant 23 million seconds later is a separate human being then maybe the embryo could be considered 1/23,000,000 part of a human.
In that case, it would clearly be inexcusable to destroy over 23,000,000 one-second embryos.