I actually subscribed to Discover so I could read that article, and having done so, I am just as annoyed with the content as I was when I let my subscription lapse years ago.

He immediately dismisses Popper and Kuhn -- as if by doing so, he can declare them finally wrong and irrelevant -- and eliminate the obvious problem that all of science really is an elaborate paradigm that is made up of provisional hypotheses.

In his article, Horgan gets to write both the questions and the answers -- he is the author, after all.  So he gets to control the frame, and therefore guarantees that he will win the argument.

Human imagination has not scratched the surface of its possibilities.  We may have gone as far as we can with atoms -- for now anyway -- but perhaps it is time for art to take over from science.

This guy's statement is no different in its arrogance than "we've reached the end of history," with similar consequences.
Or the end of cheap oil.