If you're willing to move, and live with roommates, it's fairly easy to live comfortably (assuming no children) on 12k/year total. Assuming you're making minimum wage-ish, that's 8k to put in the bank every year.
yeah, what? that's a lot of assumptions. people don't live with assumptions, they live with the realities of having a kid or a spouse or a family or even a girl they just can't get over.
I was responding to a post about 'holding back 6 months salary' as a safety measure, with a simple example of how to do so. Obviously, this is something to do before you go and start a family. My point was not that it's possible for everyone, but rather that it's not as unthinkably hard to do as one might think, even on minimum wage.