100 years? imagine all islamic countries would develop renewable sources of energy by investing all their $$$ in it? do u think they would allow oil to be sold cheaply at the end? they will charge a bomb for their oil and make sure they would utilise all the money in resources like nuclear fuel, solar, real estate, buy farms for biofuel ,etc..they are shrewd not duffers? never underestimate them. as for conversion, their religion is soo strong that they would never convert..will u convert to another's religion soo easily and why when u are having all money earned from selling oil?