A distribution problem. There's plenty of food in the world for everyone. But some people just choose to live in the stupidest places, like deserts or low areas that flood often. I'm surprised there are still people in Africa. We had to send people over there in the 60s to teach them how to put seeds in the ground to grow food. You wonder how they survived from antiquity. India is supposed to be filled with genius programmers, yet my church had to send money and people over there to dig wells for water. Even primitive people should know how to dig a well.