@inthehands seeking prior art might have prevented a lot of this sort of thinking
sarah taber was a very good follow when you wanted to know all the ways that agriculture (including automated agriculture) could go horribly wrong,
either due to vastly underestimating the needed scale, or underestimating the problem of How Not to Spend 90% of the Robot's Lifespan Being Repaired
(it turns out that typical field conditions are perfect for killing even "waterproof" robots)