Despite the use of various contraceptives, the world population keeps ballooning. Will there come a time that all food will be extinct and we cannot feed ourselves or what is the way forward because we are tilling all the virgin lands etc .
We not only could, we will outstrip our ability to feed everybody if the our population keeps increasing rapidly and if our population keeps on growing exponentially, we will inevitably reach the point where there is physically no way to grow enough food for everyone. On our journey to that point, we will lay waste to most of the remaining wild areas of Earth, burning down the forests and filling in the swamps to create more farmland, and in the process causing a mass extinction. We are already well down that path, but have not yet reached the point of no return