Do we know the tools that will work? Waymo uses expensive LIDAR's, and we dont know the price of the whole hardware set, since Waymo does not care about the pri

Do we know the tools that will work? Waymo uses expensive LIDAR's, and we dont know the price of the whole hardware set, since Waymo does not care about the price, they work on scientific problem. Tesla claims that cameras are enough and they can put it into mass-produced cars without changing the cost significantly. Pretty large gap, don't you think?