> We’ve been pretty good at selling stuff for a while, I suspect. Indeed. There were similar trade routes in North America, likely using the Mississippi River

> We’ve been pretty good at selling stuff for a while, I suspect. Indeed. There were similar trade routes in North America, likely using the Mississippi River for transportation. Ocean shells in the Midwest. Object made from Michigan copper all over the continent. Likewise tools made from obsidian from the west. Our ancestors were collectively as smart and motivated as we are.