The key realization from that post: spending less and saving more helps you retire early not just because you're saving faster, but because you need less to retire: your retirement savings only has to support your expenses, not replace your full income.
The key realization from that post: spending less and saving more helps you retire early not just because you're saving faster, but because you need less to retire: your retirement savings only has to support your expenses, not replace your full income.