regarding savings rate, i do believe it is the only thing that matters, not how much you make, when it comes to obtaining financial freedom.

sure there are extremes, one should be making a multiple above the poverty line. but if you assume this is the case, then how much you make can either be translated into earlier financial freedom through an increased savings rate or "nicer things".

here is an ouput of my simple retirement calculator:

https://drive.google.com/file/d/0B8k8RO7VeaIbc0JlUExLZmktSkE...