ON a Sunday late last month, over 400 people gathered in Usmar Ismail Hall, Jakarta, to hear six speakers talk about batik, video mapping, a music group of marginalized kids, education, and careers. While not everyone’s best way to spend a weekend day, the seats had been fully booked within 24 hours, and the hall was packed and abuzz. Yet it wasn’t a university talk or a business seminar. It was the sixth event held by TEDx Jakarta called ‘