This video will interest those who like to predict the pace at which autonomous, self-driving farm machinery could find acceptance. If things are moving at this speed in semis on the open highways, the calm of the farm fields must not be far behind.

The semi traveled 80 miles from Tuscon, Ariz., to Phoenix without an operator on board, according to this article from TuSimple, the company behind the truck's technology, says this is the first successful class 8 vehicle or semi to travel on open public roads without human intervention.

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