Award-winning Melbourne start-up Horizon State is about to trial blockchain on-line voting in Indonesia. How does it work, can it be trusted and when scaled-up to a national level, how could it affect participation? Plus, might your musical taste provide clues to retailers about what clothes you'd like to buy?

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Guests:

Jamie Skella, Horizon State

Ariel Bogle, online technology reporter ABC RN science

Jeremy Kirk, Executive Editor, Security and Technology, Information Security Media Group