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Three Horizons

These are not just ideas for ideas’ sake. These are ideas to meet the moment.
We live at a moment in time when global risk and incredible opportunity expands across our climate and biodiversity, exponential tech and AI breakthroughs, an energy transition, our social and information divides, and our collective health. The complexity is extraordinary.

On a personal level, while bombarded with ever novel content, we’re striving for purpose in our professional lives to contribute to something meaningful, we’re earnestly trying to hear the opinion of those we don’t agree with, and we’re giving ourselves a break from it all by binging Netflix before bed.

How do we make sense of this time? TEDxSydney 2025 is a gathering of minds meeting the moment.

To help us navigate the complexity, this year’s speakers will explore ideas through the lens of Three Horizons:

- Horizon 1 - Triage
 Where are we now?

- Horizon 2 - Transition
 Where are we going?

- Horizon 3 - Transformation
Which futures are we imagining and working towards?

We will hear from leaders at the forefront of our energy, economic, political, scientific and creative systems. They will share their ideas that can shape the next chapter of life on our planet.

  • 2025 Speakers 

    Corey Bradshow
    Professor of Global Ecology
    Tanya Latty
    Insect Ecologist
    Sarah Wilson 
    Author, Broadcaster, Advocate
    Isabelle Reinecke
    Human Rights Lawyer
    Gina Chick
    Rewilding Adventure & Writer
    Simon Holmes à Court
    Climate Philanthropist
    Tim Buckley
    Climate Finance Advocate
    Aunty McRose Elu
    Saibai Seisia Elder
    Barry Irvin
    Chair, Bega Group
    Ruby Rodgers
    Young Advocate, Singer
    Jessica Chapnik Kahn
    Performer, Poet
    Luke O'Shea
    Singer