Reverse engineering an open-source MOOC: optional open notebook from PPE 101
What are the 4 disciplines this course brings together? What links them together?
Week 1 reading: https://en.wikipedia.org/wiki/On_Liberty
What does the acronym PPE stand for in this context? Spoiler: it's not personal protective equipment
What is the 4th dimension being added in this year's iteration of the course?