The Unbearable Lightness of Being, Who We Are Now
Most people need some sort of addiction buffer so that they don't have to face the raw truth of the moment. They can't accept who they are now in the moment, and need "something" to dull the sensation. Our junk culture coming through our televisions from earliest childhood has programmed us to be something that we are not: A millionaire, a movie star, a pro athlete, a rock star etc. We are programmed to be dissatisfied with the status quo, from birth. Wanting, buying, getting, owning, going, seeing, eating, doing - but, at all costs, never just being. There is no profit in people just being.
Clearly intermittent small pleasures are still a very important part of an enjoyable life. However, when taken to the logical extreme, dopamine-tolerance requires ever-more consumption just to receive the same "hit", which is the point that many people have reached in their consumption-oriented "striving". Maxed out.
Zen is Feeling the Moment, it's the Ultimate High
Zen is the future of humanity. The Eastern cultures already know this, and I suspect that most ancient cultures were in a state of Zen constantly as they went about their daily routine.
Best Buy and McDonald's are the doomed past.
The Idiocracy is dopamine-tolerant indeed...the ultimate effects will be felt far and wide...