Have you noticed that on some cars it is hard to tell the indicator is on or the brake lights are working? As more care designers are getting creative with the lights, from the shape to the way they move in this edition of the Conversation Hour we ask whether lights on a car should be off limits and purely for safety.

Also in this edition, a new study that looks how fast our brain decides on the food we consume, plus the Australian Masters Games have wrapped for another year and find out about a sport that derives from Victoria that made its debut this year.