I have two questions for this topic:
If there really was only Adam and Eve in the beginning, how can there be six billion people? According to science, there needs to be a few hundred people in order to have a viable genetic pool for a population increase and survival.
Secondly, how can there be so many souls? There have never been so many billions of people on this planet before. So that has to mean new souls. Souls have to be made somehow. Or maybe, just maybe, some people are actually being born without one? If souls truly exist, can it be possible to be born without a soul?