New tech is expensive and not very good - only big businesses see positive ROI. As some technology matures, it becomes a commodity for everyone.
Small farms could go do this right now. It just wouldn't make financial sense.
As far as actual food I'm more impressed by small scale open source farm bot projects and some of the innovative stuff permaculturists are doing without tech.
Factory farmers = Microsoft/Windows
Small scale farmers = Open Source/Linux
New tech is expensive and not very good - only big businesses see positive ROI. As some technology matures, it becomes a commodity for everyone.
Small farms could go do this right now. It just wouldn't make financial sense.