In the book Engineering Happiness, economists Manel Baucells and Rakesh Sarin cite the fundamental equation of wellbeing: happiness equals reality minus expectations.
The course had to be roughly 40,000 words in length, and the whole had to be divided into ten smaller “chapters”. Why 40,000 words? Because 40,000 words are roughly five hours when read aloud. Essentially, my task was to encapsulate the most important facets of financial independence in ten half-hours (4000-word) lectures.