It can sometimes happen that, due to driver distraction or inexperience, a car indicates that it is about to move left and then turns right.
This is obviously a dangerous situation.
Today’s invention is therefore an electrical link between angle of the steering wheel and the indicators.
If there were a mismatch between the indicated and actual directions, an alarm would sound so that the driver could become aware of the impending problem and correct it.
An obvious extension to this system would be to have an alarm sound when turning without first indicating.