New top story on Hacker News: Ask HN: What is the difference between Burnout/Depression/Laziness/Wrong job?

Ask HN: What is the difference between Burnout/Depression/Laziness/Wrong job?
12 by throwaway130119 | 4 comments on Hacker News.
Burnout gets a fair bit of discussion here on HN, but I'm wondering what the community thinks are the differences between a few subtly different challenges: 1) Burnout 2) Depression 3) Laziness 4) Being in the wrong job Given that they all have very similar symptoms, how would you determine which one an individual is dealing with?