“I mean, it became particularly acute because Keynes, against his intentions, had stimulated the development of macroeconomics. And I was convinced that not only his particular conclusions, but the whole foundation of macroeconomics was wrong.
So I wanted to demonstrate that we had to return to microeconomics, that this whole prejudice supported by the natural scientists that could deduce anything from measurable magnitudes, the effects of aggregates and averages, came to fascinate me much more. I felt in a way, that the thing which I am now prepared to do, I don’t know as there’s anybody else who can do this particular task. And I rather hoped that what I had done in capital theory would be continued by others. This was a new opening which was much more fascinating. The other would have meant working for a result which I already knew, but had to prove it. Which was very dull.
The other thing was an open problem: How does economics really look like when you recognize it as the prototype of a new kind of science of complex phenomena which could not employ the simple model of mechanics or physics, but had to deal with what then I described as mere pattern predictions, certain limited prediction. That was so much more fascinating as an intellectual problem.”

In a 1985 interview with Gary North and Mark Skousen, in Hayek on Hayek (1994)
1980s and later