Please don't sell me a 7th century system for 21st century. It's trying to tell a year 12 student you will only get year 1 studies. You fail to grasp that knowledge, intelligence grows as time goes on and therefore systems need to reflect it. Was Islamic system good, yes it was the best in it's time period and the reason why it' conquered the world as everyone else was looking back to the 1st century, they were operating in the 7th century, they had 700 year headstart and hence the wins. But if you think you can replicate that by bringing that system again, it's no different to the christians of the 7th century stuck in the 1st century, were gonna be wiped out and left to dry. Time doesn't stop for no man, either u catch up or it will catch up with you (climate change, cosmic asteroids, advanced countries)!!!