The next presenters at ANZCA 2017 are David Nolan and Jennifer Beckett, who begin by highlighting the great moral panic about 'filter bubbles', supposedly caused by the fragmentation of media audiences. This perspective is not new, however: the dissolution of 'the' public sphere into public sphericules has been discussed since the 1990s, and this has also been seen as giving rise to new interest groups representing disadvantaged communities – so this diversification is not necessarily a negative trend.