Over Thanksgiving break, I caught up with a friend who’s been traveling the world whenever possible. To keep costs low, she leverages methods like couchsurfing, guest rooms, hostels, and AirBnB. We chatted about how amazing it was that people were just so trusting even with complete strangers. It must boggle an economist’s mind, but it makes perfect sense that the human behavior of sharing became an evolutionary trait that was crucial for survival. I see it with my two year old daughter, who loves to share her toys and food with us. Must be ancient wisdom passed on throughout the generations. If we view humans’ time here on earth as a two year old compared to the billions of years the earth has been around, watching my daughter grow up gives me hope for humanity. My wife was telling me an NPR story about how there is a correlation between the older a country is and the more likely it is to invest in environmental issues. Lately, I’ve been really fascinated by collaborative consumption, currently reading What’s Mine Is Yours. As resources become more scarce and climate change/overpopulation/energy consumption/diet changes/[insert countless other global issues here] puts increased pressure on our social, economic, and political systems, we’ll need to embrace old traditions of sharing to help us weather the turbulent storms and transition from current unsustainable political/economic hegemony to a model that will make the world work for 100% of humanity in the shortest possible time.