Again, viability does not define human life. Viability refers to chance of survival.
And humans with a 0% chance of survival due to lack of higher brain function are both medically and legally dead.
The start of human life begins at the formation of a zygote.
A zygote is no more a human life than a skin cell.
Do we consider living to be sentient or conscious? If that were the case, that means we are are no longer alive while sleeping?
You don't need to be conscious, but you need to have the capacity for consciousness. Adults without the capacity for consciousness are declared dead. Fetuses without the capacity for consciousness are not yet a life.
This comments gave the most valid points and you guys just disregard this for what?, to pretend you didn't see a thing and continue with the debunked argument... what a loser
Because it goes in circles and was already refuted in my earlier comment.
A fetus does not have a 0 percent chance of survival, inaccurate. A fetus will survive as it continues development in the womb and then post birth.
A skin cell does not differentiae into a full human being, a zygote does. And as I've mentioned, it is less cruel to abort a zygote than it is a 9 month old fetus in the womb.
Consciousness doesn't even exist for babies post birth. No one remembers being a one month old. No one remembers any feelings or emotions as one month old. The brain is so under developed, with so little neurons, there is no complex thoughts. A baby at one month old could die without knowing it, or being aware of it. Do you begin abortions post birth because the baby is so young and would not remember or even comprehend being killed? Consciousness isn't any good metric to determine when human life becomes valuable. Human life is human life with or without consciousness.
If it were, why would it be a tragedy if someone passed away in their sleep? Why would it be a tragedy if everyone in this world passed away in their sleep tonight? No pain, you won't be aware of it, and you were consciousness for it either. For the same reason why abortion is unethical. You deprive someone the privilege and experience of human life.