Social Darwinism is more a nasty prejudice than a coherent philosophy, as I show in my series on conservatism. And this article is more about a style of philosophizing. I talk more about BS's potential social Darwinism in the other two articles in this series (links below).
And yes, it depends on what human nature is supposed to be. Is our nature to be confined to how we lived in the Stone Age, as evolutionary psychologists would have it? Or is behaviourally modern personhood a self-transcending, progressive capacity?
By "paradigms of technology," he means the Internet Age which is supposed to be revolutionary.