> If you're constantly responding to every change in conditions, what's the point of the autopilot?
The same as a cruise control - you are supervising rather than micromanaging because micromanagement is more work than supervision.
A distance-keeping cruisecontrol may be changing the throttle level dozens of times per minute. A driver supervising that system can keep an eye out for stalled cars on the side of the road, wildlife etc., withput using most of the attention on keeping a constant distance to the vehicle ahead. This complements the driver and increases safety because the drivers cognition can be used to what it's best at, and simple tasks like keeping a constant speed or constant distance can be done by a computer.
The problem with this "Level 2.5" autopilot is twofold:
1) It's called "AutoPilot", even though that shouldn't be the name of it until it's feature complete (level 4 autonomy) simply because people seem to assume that AutoPilot means something that drives by itself.
2) It appears good enough to allow the driver to not pay attention, while still requiring the driver to pay attention. The disclaimers that the driver can never be distracted for a short momet (i.e. use it like a pilot uses an autopilot) don't seem to help.
A lot of the comments here seem to indicate "if I can't text/sleep/whatever then what's the point of an AutoPilot" - clearly misunderstanding the current capability of the system!