There is all kind of automation possible, and was in the 70s too. for example, you could do the whole thing mechanically without a singe chip. a few hydraulic l

There is all kind of automation possible, and was in the 70s too. for example, you could do the whole thing mechanically without a singe chip. a few hydraulic levers and some guide wires and you have a 20,000lb tractor that runs up and down rows.