One of the thoughtful questions we could be asking is, "Have you ever gone to Google and typed in 20 week baby or 20 week fetus? Try it and click on the images. " Suddenly your friend will see what a 20-week-old baby looks like in the womb. That image is clearly a unique life.
Music has to be written while people are still excited about a particular melodic or rhythmic sequence. The idea doesn't come out the same if we're not really excited about it.