If you watched the video, he goes into a discussion about shocks (about 8 minutes in) like bad investments but how they don't really matter as much if r (rate of return) is greater than g, the rate of economic growth. If r = 5% and g = 1%, then you can lose 80% (the difference) and still be ahead because the return on the remaining 20% has paced with economic growth.
DonebyForty Yes, that makes total sense! I hear you on the savings rate, too. I always figured I lived lean enough (and had enough saved up) that I could handle things even without my main source of income. However, after leaving my job last year and having a tough time with freelancing, I realized not having a job was more of a mental drain than a money one. I like knowing I have control and can call on another source of income and increase it when I need to. 

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Love your articles. I think everyone is very different as far as how much passive income they need to meet their goals. I’ve read a lot of your articles and really enjoy your thoughts. I have a masters in finance and understand the math of keeping the debt but my emotions are such that I need to try to finish off paying off my last debt (mortgage) in the next two years. At 34 and only worth 525k I’m doing better than a lot of folks my age but it will be difficult for me to catch up in the passive income game without leverage. That is the main reason I recently created a website to try to bring passive income opportunities in my area to me.
Airbnb is a concept that has only been around for a few years, but it has exploded around the globe. Airbnb allows people to travel all around the world and to stay in accommodations that are a lot less expensive than traditional hotels. They do this by staying with participating Airbnb members who rent out part of their homes to travelers. By participating in Airbnb, you can use your residence to accommodate guests and earn extra money just for renting out space in your home.
An obvious example is over exposure to bank stocks, which have been excellent investments for over a century.  Though a foundation of most portfolios, bank stocks do involve more risk at certain stages of the economic cycle than many realise.  Being less exposed to bank shares in the last few months could have preserved some capital.  So, a more diversified approach can help mitigate some of these risks.