Robotic agriculture: tractors are working now in the large US mid-west fields.   The agriculture industry is a $5 trillion industry representing 10% of global consumer spending, 40 percent of employment and 30 percent of greenhouse gas emissions globally. Robotic tractors are positioned to help agriculture to be more precise, more efficient, and more productive. The use of many small tractors will help the soil base, creating less impact on compaction. Agricultural efficiency improvement is impactful to humanity, changing the size of the population, quality of life, and making a better future.  Agricultural self-driving features for tractors are the beginning of a full rollout of robot technologies.