The SCI experience is best understood through the observations and activities of participants. See this blog post from after SCI 2017 concluded for some description of what it was like, from the perspective of participants, including their blog posts, a podcast interview, tweets, and photos.
You can learn more about the past Triangle SCI years from their web pages:
The uvasci.org web site has information on SCI events and activities from the ten years when it was held at the University of Virginia. The Triangle SCI is different in format, and specific topics and projects will be determined by participating teams, but the UVA SCI web site will give you a good sense of the kinds of topics that were addressed in the first decade of SCI.