Most people plan their money carefully and their life vaguely. They assume "later" exists for everything they've been meaning to do. It doesn't. Most experiences have a quiet expiration date, and "later" is when the window has already closed.
This tool — based on Bill Perkins' Die With Zero — asks you to do something most people never do. Take everything you've been telling yourself you'll get to "one day." Then place each thing on a decade. See which decade.
Some experiences age well. Reading. Slow travel. Quiet mornings. Time with neighbours. Some don't. Backpacking with a 25kg pack. Days with your kid before they're a teenager. Holidays your parents are still well enough to enjoy. The career second act that requires a 60-hour week to launch.
The work isn't to do everything before you're 50. The work is to stop pretending the calendar is infinite — so that the things you've been putting off don't quietly get assigned to a decade where they're no longer possible.