Looking forward to reading this, but as I don't see a link in the comments here or the body of the article, you really should read the essay by Flexner that's referenced in the headline. It's stored at the IAS here:

https://library.ias.edu/files/UsefulnessHarpers.pdf

And it's being reprinted with commentary here (the occasion for the essay linked):

http://press.princeton.edu/titles/10924.html