http://www.psychologytoday.com/blog/the-human-beast/201006/why-atheism-will-replace-religion-ii
How fast will atheism replace belief in god?
Published on June 10, 2010
Thanks to the many people who responded to my previous post. Some comment writers put words into my mouth by suggesting that this would happen "soon." Others claimed I said that religion would disappear completely. Let me clarify these and other issues.
Worldwide, disbelief in God is around a tenth of the population according to surveys conducted around 2004 for 137 countries that remains the best estimate. Even if it were true that the other nine tenths will eventually lose their faith in God, this would take a long time.
How long? The world population continues to grow and much of the growth is in religious countries where women have larger families. Religion is thus unlikely to decline appreciably for several decades, after world population begins to decline.
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