Lots of places, including here on HN. Here's a random link from Googling right now: https://www.technologyreview.com/2013/10/22/175716/driverless-cars-are-furth

Lots of places, including here on HN. Here's a random link from Googling right now: https://www.technologyreview.com/2013/10/22/175716/driverless-cars-are-further-away-than-you-think/ https://www.technologyreview.com/2013/10/22/175716/driverles... > But such projections tend to overlook just how challenging it will be to make a driverless car. [...] It could take decades for the technology to come down in cost, and it might take even longer for it to work safely enough that we trust fully automated vehicles to drive us around.