This is one area in particular where the past is not a reliable guide to the future. The future is an unknowable country especially with respect to how much one

This is one area in particular where the past is not a reliable guide to the future. The future is an unknowable country especially with respect to how much one should be saving. The rough rule of thumb, of course (I hope of course) is to save as much as you can and that isn't too painful. Savings is a cushion. It provides security. It buys options. Money can be turned into (almost) anything else you need/want. And there is absolutely no way that a sufficiently intelligent, knowledgable and honest person can come up with some magic specific number or percentage and declare confidently that that is what you should do. Save as much as you can/want, and generally the more the better. Old news. Resolved issue.