However, Lane Keeping and Autosteer systems, like Volvo's DrivePilot, have existed for a while. These usually activate whenever they detect lanes. However, they don't consider VRUs or obstacles in their paths at all. As long as they can detect lanes, they will happily drive you into a wall or a person at speed.

The biggest difference between them and FSDb is that FSD can be activated on any road surface. FSD can make decisions based on the environment it's in as perceived through its cameras (with a very short delay), but it doesn't disable itself when it doesn't know what to do. It tries very very very hard to not ram itself into anything, but it is definitely capable of it if it guesses wrong.