Oh. So your ridiculous statement was in fact intended to confer equivalence on a blastocyst and a four year old. Why did you pretend otherwise? And do you also confer equivalence on a single spermatazoa and a four year old? If not, why not?
No, my statement, which I do not find ridiculous at all, is that both the blastocyst stage and four-and-a-half years old are stages of human development. That should be quite clear from a plain reading of the original statement.
Don't you agree that this statement is true?
I do not confer equivalence to a blastocyst and four-and-a-half year old. They are obviously different. Likewise a sigle spermatazoa is different, even from a blastocyst. This should be apparent even to the casual observer.