> We believe that a vision-only system is ultimately all that is needed for full autonomy. Our AI-based software architecture has been increasingly reliant on cameras, to the point where radar is becoming unnecessary earlier than expected. As a result, our FSD team is fully focused on evolving to a vision-based autonomous system and we are nearly ready to switch the US market to Tesla Vision. This is a huge gamble IM…
I'm not entirely convinced it's a good idea, but one convincing argument I've seen is that sensor fusion is hard and it's not a priori clear which sensor to believe when they provide conflicting information. It's entirely possible that they get better predictive accuracy from vision-only data then in the analogous situations with vision+radar data.
They probably started without lidar due to the cost (Tesla is one of few companies actually selling cars to customers, who are sensitive to price). The price of lidar has come down, but I would guess it requires a fair amount of expensive rearchitecture to add it in now, and they haven't bitten the bullet yet.