SoftBank is putting $200 million into the excavator-automation startup Gravis Robotics, whose headline productivity figure was stated two different ways on announcement day, with no published method behind either version

Gravis says its retrofit kits deliver "up to a 30% boost" against peak manual operation. It also told Inc. the machines have delivered "about 30 percent on multiple projects" against human-operated equipment. The specialist Inc. asked wants to know what was measured.