I'm personally excited about precision autonomous agriculture. Think about drones 'sniping' pests with tiny doses of pesticide instead of farmers spraying entire fields.
Are they being deployed today? Super exciting idea.
Drones have been used for crop monitoring for a while now. Using the aerial footage to determine the parts of crops in most need of specific resources such as pesticides, fertilizers, or hydration. Something a bit more automated like what this guy's talking about seems like it should be in use today or, if not, very soon. I remember reading about this stuff several years ago around 2018-2019 when I had a drone and looking at ways to make money with them. Of course, it may not be in widespread use.