Ellen Broad on what makes a good online life.

Michelle Knox, death expert and mortal realist.

Malcolm Turnbull on the big picture. 

Photo credit - Peter Brew-Bevan

Ben Vasiliou on respecting and supporting homeless Australians.

Eitan Hersh on why local service beats political hobbyism.

You can find out more about Eitan's book Politics Is for Power - How to Move Beyond Political Hobbyism, Take Action, and Make Real Change here.

Toby Ord on Longtermism.

You can learn more about Toby's book The Precipice here.

Randolph Sparks on chronic pain and positive psychology

Debra Rickwood on mental wellbeing

Justin Wolfers on impact, feminism and economics.

(With occasional accompaniment by Senate bells.)