Imagine a world where even agriculture is automated; now don't blink, because we've almost made it there.
Concepts of autonomous tractors are now arising that don't require drivers and have the potential to manage farms 24 hours a day and 7 days a week. More importantly, it's possible to run several of these autonomous machines in an array rather than just one at a time.
Not only could this improve the speed and efficiency of farming output, but it can reduce the health problems associated with long Sun and heat exposure on the farming individuals themselves.
The autonomous tractors can pull equipment around just like a manned tractor could, so it's a matter of attaching the proper hitch and pressing the green button.