They wouldn’t have slammed into it, if they’d kept their safe distance as @[email protected] wrote. I’m in no way defending Tesla‘s „Autopilot“, it should be banned until they pass a very difficult test proving true self driving capabilities and multiple layers auf fail safes (which they can’t right now). But examples where an autopilot Tesla did something stupid and other people making human errors are disingenuous: if somebody drops their cigarette and breaks unexpectedly and the cars behind don’t keep their distance and slam into it, the reason they have an accident is not the cigarette but their dangerous safety distance.