I know RC's make fools of themselves all the time, but that's who said it.
So, I'll ask again, why do all of these non-Catholic statistical groups use the same number?
Got me, I don't know.
Statistics is a fairly exact science and no statistician wants to risk being so wrong about how many Christians are in the world by accepting unverifiable numbers.
Oh please, this stuff has become as politicized as about anything else. A good example is the new jobless claims number that came out yesterday. 9 states didn't report numbers, 2 of those states sent estimates and the other 7 states had their numbers estimated by the fed govt.
Also, are we talking about people who are identified as Christians because some water was sprinkled on their heads as babies, or are we talking about 7 day a week Christians? IOW, these numbers are fungible.
lol. Roman math. II + II = X.