Rockin' live December 15, 2012, New Jersey, USA.

What's Lady Gaga saying to Mick?

I do something physical most days: spin on Pinkie Patti's back in the morning while she's still asleep, walk in the afternoon, or  swim in nearby Lake Memphremagog.

Sometimes Pinkie Patti and I play a few holes of golf in the late afternoon (amazingly, she still hits a good ball at 84, despite her Alzheimer's).

We make important decisions every day -- and we often rely on experts to help us decide. But, says economist Noreena Hertz, relying too much on experts can be limiting and even dangerous.

She calls for us to start democratizing expertise -- to listen not only to "surgeons and CEOs, but also to shop staff."

As a producer, Julie Burstein builds places to talk (brilliantly) about creative work.

Her book Spark: How Creativity Works, shares what she knows, and  traces the roots of some of the twenty-first century's most influential and creative thinkers, including Joyce Carol Oates, Yo-Yo Ma, David Milch, Isabel Allende, and Joshua Redman.