However if it makes you think about the world, the mess it is in right now and the future, all well and good.
There are so many people starving across the World, hate is the watchword right now, civil unrest is on the increase, jobs are scarce, resources are low and the World economy looks doomed. Of course that dismal picture is a worst case scenario. As they say, where there is life there is hope. But we need to get a grip.
In the past disease and premature aging and death has limited the World population. Expecting not all children to survive into adulthood, most parents had a large family. Then of course there was War. The Two World Wars certainly levelled the population out along with the coming easy access to birth control products.
However, if it is to be believed that the rise in population is mainly down to longevity then we are in trouble. An increasingly aging population is often less productive than a younger one. Ultimately it will cost more.
Yet we know that in reality there is still wealth in the world. Look at the amount of money spent on destroying the planet with conflict and corporate greed. No matter what your stance on the Occupy protest movement it is hard to refute there claim that the World's wealth is in the hands of 1% of its population.
There is still hope for the planet if its population is prepared to make changes. If we carry on the same course it will be doomed. 7 billion may seem a staggering amount of people but what will the population be 20 years from now?