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They need humans driving the tractor for the same reasons we aren't all commuting to work in robot cars and buses.

• Tichy 18y ago
  I thought there are robot harvesters guided by GPS already?
• icky 18y ago
  (Because people can't stand the thought of robots touching their food with their shiny metal robo-claws!) Farming on private property is an entirely different scenario than having robot vehicles on public roads. I doubt he'd need anybody's approval to set things up that way.
  • menloparkbum 18y ago
    It would also help if robots that could do the work actually existed.
    • icky 18y ago
      In most scenarios where robots would be replacing human labor (especially in safety-critical areas like trucking), the engineering problems are a lot more tractable than the political ones. GPS-guided farming seems like one of the simpler scenarios, and if finding labor is as difficult as the original post claims, one of the more likely ones, as well.