I'm reminded of a thread on HN where someone did a cross country trip and their car only phantom-braked a couple of times, and called that a huge success.

If my car slams on its brakes, and this causes you to hit me, then you are exactly the type of person I wish was using FSD.

You're following too close to me for the conditions, you're distracted, or some combination of both.

My car might have to emergency brake for any number of reasons. This should never cause a pileup, and if it does it's your fault, not mine.

If someone brake checks and you hit them, you're just as much of a problem. Learn defensive driving and stop driving so close to another driver. Keep a safe distance.

Because only a FSD car causes piles up... your right, I NEVER saw 90 car pileups on the news before FSD. /s

I'm pointing this out because he said (in italics) "substantially".