Theories abounded on a special science edition of Q&A, from Einstein's old high-stakes hunches to more recent propositions and pre-occupations. But there was one hypothesis that didn't get a look in, so we are pleased to share it with you here.

For many years Kerrie Lester was a fixture in the Archibald Prize. She was awarded the Packer's Prize, and named official "runner-up", but never made the winner's circle.

A major Fairfax/ABC investigation can reveal that behind the scenes those who worked with Don Burke claim he was a "psychotic bully," a "misogynist" and a "sexual predator" who indecently assaulted, sexually harassed and bullied a string of female employees.

Anyone who imagines Tidelands signals the opening of the floodgates is sadly mistaken.

Thrones fans can rest assured that even the impending zombie apocalypse won't stop George RR Martin.