A lot of people are living above their means or on a economy with no breathing room => I think this is a very bad strategy going forward.
Regarding my startup I am trying to build a profitable and sound business that targets the global market.
As for investments, pick your index, close your eyes to the ups and downs and pray someone in government realizes that when people are willing to give you a negative real interest rate you should take their money and do something productive with it.
The only way I'm able to interpret this as practical advice is "invest in the mafia". Unless you're talking about building up your personal skills - which, while good advice (if you can do something other people want then you'll never go hungry, no matter how bad the economy), doesn't really scale.