The future came chugging across the wide front lawn at Kinze’s Williamsburg, Iowa, plant. It came in the form of an autonomous grain cart system, which consisted of a combine followed by a tractor pulling a grain cart. Nothing unusual there…except the tractor had no driver. Even so, it maneuvered the cart alongside the combine and held it in place as the combine unloaded on the fly. Then the driverless tractor pulled the cart to a staging area where, if this were a real situation rather than a demonstration, someone would have loaded grain into a semi. The tractor and cart would then have headed out to intercept the combine again.