When Labor’s national secretary, Paul Erickson, delivered the traditional post-campaign address to the National Press Club in Canberra this week, explaining the secret sauce to the emphatic election victory, the people who had the most to benefit from it were not even in the room.

The entire speech is a must-watch for anyone interested in how campaigns are run and won, but this line felt particularly targeted and timely: “For the Liberal Party, elections are won when you learn the lessons from your defeats and escape the echo chambers on your own side.”