Seven billionth since when? When they started counting? they couldnt truly know this, there must be at least one unaccounted birth in the world.
Yeah I was thinking the same thing. Would be kind of hard to calculate that this birth marked the 7th billion human alive.
Yeah, because we don't really have a stable demographic chart in many third world countries, for all we know some African woman could have given birth to the seven billionth baby, but she didn't register him, from different reasons, varying from political, financial, ethnic etc.