There are two aspects to the issue, and they've been blended together for so long that this ruling is like a breath of fresh air in a stuffy room. There is the beginning of the physical human body, and then there is the entry of the soul into the body.
Atheists and agnostics and communists and Leftists are stuck with the first aspect alone - the beginning of the physical body alone. Ironically, these shiftless lying bastards and bitches have invoked spiritual arguments to avoid the obvious, which the judge just nailed: the physical human body begins at conception, by definitions, because nothing but innate growth takes place after that, not any addiction of new biological material. So at the physical level, that's that - legally. And if that's all you recognize for abortion, then conception is it.
Spiritually, however, there's the discussion of the soul, and when it enters the physical body. Obviously, many believe the soul enters at conception. But there are ancient teachings from many different religions that this isn't so - that the body has to develop to a certain level of sophistication before it provides a suitable environment for the soul.
As for abortion, in a spiritual sense, the discussion becomes a definition of terms at the most fundamental level - the destruction of the human body without the soul, versus the destruction of the human body containing a soul (and I'm not even getting into the demonic atrocity of killing a late-term baby, or one being born).
Obviously, if the soul enters after conception, at some point in the development of the fetus, the human body before it enters is hardly "neutral" since it is being prepared FOR a soul. So killing it would NOT be "neutral," either.
But killing a fetus WITH a soul, by any definition, is killing a full-fledged human being. And human civilizations can only allow such killing under extremely limited circumstances, lest they condone murder and, eventually, destroy themselves.
It is at the moment of fertilization that the human individual begins existing. Once the ovum is fertilized by the sperm all human chromosomes are present and a unique human life begins. It isn't until about six days later that the embryo starts to implant onto the wall of the uterus, this is called implantation. Within 21-22 days the heart begins beating with blood distinct from the mother's. This is a good link for understanding the development of the human being.
One of the reasons birth control pills have been effective is with a secondary function which causes the uterine wall to become inhospitable to an embryo should the primary function of stopping the release of a ripe egg to be released (ovulation) fails. I look at this as the same thing as an abortion only sooner, the only difference is that the mother doesn't know it even happened.
We will have to do more to convince an ever increasing secular society of the worth and rights of the human life than by using the soul or the timing of the imparting of a soul. I feel this can be accomplished by using biology and an ever increasing respect for the rights of all human life. I dream of the day when abortion will become unthinkable because of this respect. We see the public slowly coming around to this and I think the Pro-Life movement can be thanked for much of that.