Among the things I learned this week:
* Garden & Gun average subscriber household income is $332k. (Courtesy: WSJ)

* Fifty-eight percent of private market activity (as measured on Nasdaq Private Market) in 2015 was private company stock buybacks. That number was 44 percent in 2014. (Courtesy: WSJ)

* The history of debt and late evolution of money. (Courtesy: David Graeber’s Debt)