yes,as u said islam is fastest spreading religion but its not the fastest growing religion.it is incresing in numbers because of birth rates (www.bible.ca/islam/islam-myths-fastest-growing.htm).falung gong with over 100 million new adult converts in less than 10 years is fastest growing religion, followed by christianty that has made strides during these recent years in india and africa. more than half of iranians do not call themselves muslims anymore and this alone counts for 35 million people.secondly excess numbers/quantity does not add to their strength but rather to their weakness and poverty.the quality of religion is directly proportional to quality of life.for example the ratio of nobel laureates between muslims and jews are 1:100,considering population of muslims is more than 10 times higher than those of jews.also total GDP of arabs countries combined is less than the GDP of spain alone.please do visits the following sites : 1.www.interfax-religion.com/?act=news&div=513 2.www.formermuslims.com/forum/viewtopic.php?t=972 3.www.timesonli ne.co.uk/article/0,2-1470584,00.htm 4.www.faithfreedom.org/forum/viewforum.php?f=30&topicdays=0&start 5.www.rad ioislam.com/_asx/publicaffairs/whynewmleave.asx