What is radar braking and where is it enabled?
I just wish it would react better to cars halfway in the lane. It just seems to have no reaction until the other car is almost all the way in the lane. The problem could be that they're training it using Tesla drivers
If this is ever going to be much safer than the best human driver (not just drivers in general - the very best human driver is the most reasonable metric), FSD with HW 3.0 will need to be able to sense the vector, note wheel angle, lane position, etc., of a vehicle in an adjacent lane so as to make a nice gentle reasonable reaction to the vehicle entering the lane, prior to entry, prioritizing maintenance of speed without compromising safety. Otherwise FSD is going to get rear ended when it makes an abrupt reaction (and that would make it less safe than the best human driver - the best human drivers drive so that other humans can be incompetent and yet not hit them).
I used AP this weekend, and saw a minivan about 50 yards ahead that looked suspicious in an adjacent lane to the right (it was drifting purposefully left in its lane - I don't remember if there were other cues), and I was closing on it at 30mph or so. AP wasn't doing anything, so I signaled for it to move over a lane to the left while the minivan was still in the adjacent lane, just as the minivan started to make the predicted switch to cut me off (I don't remember whether it ended up signaling or not). FSD needs to have similar (but superior) predictive abilities, as I am definitely not the best human driver.
FSD will need to be able to duplicate this behavior and pick up on the subtleties before release, and have predictive abilities exceeding that of humans. Seems like a tall order for the NN, but maybe not. In any case, creating that behavior is independent of the sensing suite (lidar, radar, cameras) that is in use. It also needs to adjust following distance, based on the distance that people
behind the Tesla are following (that's a lot easier but not sure it can be done with current sensing suite).
There's all this talk about this particular truck scenario getting fixed by FSD. And maybe this specific case will be, not sure. But in the end, FSD when it is released is also going to have fatal accidents which humans would generally not have. It's just the reality, even if FSD ends up being really quite good (which it may or may not be). Just wonder how people will react to those events. To start with, the fatal accidents will occur when the nags are still active (must have full driver attention). Whether they'll ever get to the point where Tesla can get approval for release of L3/L4, I don't know. But if they do, the fatal accidents will continue. It'll be interesting to see how things evolve.