My topic this year is music and where it might be headed post the "economics of scarcity" business model. A model that started with radio broadcasts and gramaphones, generated many rich people (middlemen and performers), fueled many a career aspiration up to 2015, but has come to a grinding halt with mp3s, streaming services etc.
http://www.congregation.ie/2015-attendees/sean-mcgrath-topic-music.html