In it he makes the case for libertarians to embrace "state capacity" in certain limited cases. You can read his essay here.

My initial responses, in no particular order, are as follows:

1. There is no political will or constituency for skillful technocratic state management of society. This is a pipe dream, once simply referred to as elusive "good government." When do public choicers of all people give this up?
2. There is no third way between state and market, regardless of technology or material development. Futurism is bunk; the question before us today is the same as thirty, fifty, or one hundred years ago: who decides? Decentralization vs. centralization is the most important policy question.