It’s dogmatism to claim that humans are becoming more or less intelligent but it’s scientific evidence that human brains remain evolving to keep pace with global changes. Economic and social environment are changing faster than we ever imagined which require more and more skills to survive.
Science and technology achievements not only give us more information (increase of intelligence) but also more distraction (decrease of intelligence). There are always two sides to every coin.
Let’s take an example of social network sites in terms of distraction. We seem to have more happiness and freedom outside but actually get more dependence inside while becoming slaves of technology. In a much more convenient life, many things lose their true meaning. So many of us take things for granted.
We have nothing to do but concentrate on what we are interested and expertized in and enjoy our own way of life.