If you look at the population of the world you have roughly 15% that will always be resisting advertising. Fifteen percent of something which has not yet been reached.
![If you look at the population of the world you have roughly 15% If you look at the population of the world you have roughly 15% Image](https://www.idlehearts.com/images/if-you-look-at-the-population-of-the-world-you-have-roughly-15.jpg?x85372)
If you look at the population of the world you have roughly 15% that will always be resisting advertising. Fifteen percent of something which has not yet been reached.