From Business Insider:
Ben Bernanke has delivered the commencement speech for this year's graduates of Simon's Rock, a quirky college in Massachusetts. ... It might be the only commencement speech all year to contain footnotes. Read more
The speech is about economics, but rather than discuss the short- or medium-term, he talks about the very long-run, and whether things are likely to change a lot over the next 50 years, and what role technology or innovation will play.
... Bernanke says in the long run we will see massive changes in technology and life improvement like we've seen since 1913 and 1963, based on the fact that the world is seeing more and more innovators and geniuses working together in a way like never before.
The article includes a link to the complete text of his speech.