There are no easy answers to undoing all the problems driving intergenerational inequality but hope is not lost. Young Australians are increasingly politically influential, making up 43% of voters at the last federal election. Jane Lee and Matilda Boseley call on Guardian Australia political reporter Amy Remeikis and the Australia Institute’s chief economist Greg Jericho to find out whether this is influencing policy debates on everything from housing to climate change, and how millennials can use their new-found power for good