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When does a human being become a human being? When, indeed, does life begin?
To answer that question, we have to ask ourselves when life ends.
If life begins at conception, when a unique DNA is created, then it follows that life is still continuing as long as there is DNA in the human body. Therefore, the Neanderthal who provided the DNA for us to sequence their genome was still living.
No, that is absurd.
If it begins when the heart starts to beat, then it follows that it ends when the heart stops. If that is so, then a lot of people have died already, but are still walking among us.
No, that is absurd also.
If it begins when the brain begins to function, then it follows that it ends when the brain ceases to function.
Now, that one seems the most logical. Life begins when there is measurable brain activity, and ends when that activity ceases. Most likely, those events coincide with the times the spirit inhabits and leaves the body behind.
So, before the spirit enters the body, it is just an uninhabited collection of cells, much like an automobile still on the assembly line. When it leaves, then the body is once again just a collection of (now dead and no longer dividing) cells, much like the same car on its way to the junkyard.
To answer that question, we have to ask ourselves when life ends.
If life begins at conception, when a unique DNA is created, then it follows that life is still continuing as long as there is DNA in the human body. Therefore, the Neanderthal who provided the DNA for us to sequence their genome was still living.
No, that is absurd.
If it begins when the heart starts to beat, then it follows that it ends when the heart stops. If that is so, then a lot of people have died already, but are still walking among us.
No, that is absurd also.
If it begins when the brain begins to function, then it follows that it ends when the brain ceases to function.
Now, that one seems the most logical. Life begins when there is measurable brain activity, and ends when that activity ceases. Most likely, those events coincide with the times the spirit inhabits and leaves the body behind.
So, before the spirit enters the body, it is just an uninhabited collection of cells, much like an automobile still on the assembly line. When it leaves, then the body is once again just a collection of (now dead and no longer dividing) cells, much like the same car on its way to the junkyard.