Comment by jaclaz

Only to say that there is "nothing new under the sun", Mr. Money Mustache's basic message is (was) essentially "common sense", some time ago I cited an old Italian proverb in a similar enough topic:

https://news.ycombinator.com/item?id=14594858

He only uses his own experience to show how it can come out in practice (and of course it needs to be scaled - down or up - depending on personal income, financial situation, family size, etc. and of course expectations).

Results will of course be different, but the basic principle remains valid.