Why haven't car manufacturers standardized automatic brake lights when a built in accelerometer detects deceleration?

Then... what? You're coming back days later to "no u" a comment that lays out pretty explicitly an exception to what you're presenting as a blanket rule. Do you... disagree? Are you just inexperienced enough with driving to not have had that happen to you? Adjusting to driving conditions takes time - even if it's only for 6-7 seconds per incident, that's still time where you're forced to follow far too close to another car without an ability to prevent the situation from arising. You seem like you don't understand that, sometimes, other people can be responsible for the situations you are put in through no fault of your own. Or, you're a sith. A driving sith.

...

Darth Subaru.