Suppose, if the world starts following islam right now, in 2020… all 7+ billion people has only one religion i.e., islam. Then these will happen:
2020–2050: the world will be in peace. No more violence for some amount of time. And the number of islamic preachers will increase with more followings. All the churches and temples will be destroyed. Population will starts to increase exponentially. Education will gradually decrease. All the pigs and boars will be slaughtered.
2050–2070: the women discrimination will start. Religion will be considered above education. Burqa system will increase and lgbtq community will be killed. Multiple marriages will start. The development of SAUDI ARABIA will stop as many workers of these countries are either Christian, Buddhist or hindus. NASA and other space organisation will be closed by the Islamic government.
2070–2100: the history of previous religion will be completely erased. Scientists will either be killed or imprisoned for working against laws of islam. The world starts going backward. Population will increase and literacy rate will be ~10% in the world. Geocentric theory will be considered true instead of heliocentric theory.
2100–2150: 0% scientific education, 100% religious education. Population will be above 12 billion and female infanticide, female abuse and also child rapes will increase exponentially. Crime in the name of islam will be about 65%.
2150–2300 : the world will be in dark age for a long time. No more heliocentric theory, crime will increase, no more space exploration, overpopulated earth, no more farming, brutal animal killing in the name of god, education will be 0% and eventually the extinction of islam
source - quora
2020–2050: the world will be in peace. No more violence for some amount of time. And the number of islamic preachers will increase with more followings. All the churches and temples will be destroyed. Population will starts to increase exponentially. Education will gradually decrease. All the pigs and boars will be slaughtered.
2050–2070: the women discrimination will start. Religion will be considered above education. Burqa system will increase and lgbtq community will be killed. Multiple marriages will start. The development of SAUDI ARABIA will stop as many workers of these countries are either Christian, Buddhist or hindus. NASA and other space organisation will be closed by the Islamic government.
2070–2100: the history of previous religion will be completely erased. Scientists will either be killed or imprisoned for working against laws of islam. The world starts going backward. Population will increase and literacy rate will be ~10% in the world. Geocentric theory will be considered true instead of heliocentric theory.
2100–2150: 0% scientific education, 100% religious education. Population will be above 12 billion and female infanticide, female abuse and also child rapes will increase exponentially. Crime in the name of islam will be about 65%.
2150–2300 : the world will be in dark age for a long time. No more heliocentric theory, crime will increase, no more space exploration, overpopulated earth, no more farming, brutal animal killing in the name of god, education will be 0% and eventually the extinction of islam
source - quora