"Grind to a halt" is an awful overstatement here. They should really be saying "farmers lose 4% efficiency boost from downed GPS system" instead. I worry there

"Grind to a halt" is an awful overstatement here. They should really be saying "farmers lose 4% efficiency boost from downed GPS system" instead. I worry there's a serious misconception in the discussion of this article on the current utility of these GPS systems. It's not like Interstellar, where farm equipment can run unattended--you still need a worker in the tractor to perform the turns at each corner and monitor any deficiencies in the seeder/sprayer. I grew up on a farm growing the crops listed in this article. We didn't get GPS guidance on any of our tractors until the early 2010's--GPS is a convenience, not a dependency. If GPS systems were malfunctioning, we would revert to the way we had planted for decades: drive in a straight line towards the next n'th fence post over at each turn.