Last week, Russ Roberts (of ever excellent Econtalk) wrote a blog post about economics and engineering. I was surprised by how much I disagreed, though not in the way you might expect.  His point: looking at the economy isn’t anything like an engineering problem. The economy is complex and emergent while...

That’s the value of person-to-person teaching that’s irreplaceable in textbooks and MOOCs – the human ability to recognize a problem someone doesn’t even know they have.