Decide Slowly
Honest tools for decisions that don't have clean answers.
Every tool on this site does two things together: the real arithmetic you can't avoid, and the structured reflection that the arithmetic alone can't reach.
The arithmetic is real — actual runway math, actual cost projections, actual withdrawal-rate ranges — not invented or smoothed into a single confident number. The reflection is your own answers reflected back to you, not turned into a regret percentage or a confidence score. Those two things together are how most big personal decisions actually get made. We don't try to do more than that.
Career
Quit-or-Stay
The question is rarely "should I quit, yes or no." The question is usually "how long can I afford to figure this out, and is the job actually damaging me enough to make that worth it." The tool does the runway math — savings, expenses, side income, dependents — and lays your own answers about depletion, growth, and rehireability back out where you can read them.
Education
Go Back to School, or Keep Working?
Tuition is the small cost. Foregone income is the big one — incumbents leave it out. Honest math, with a stress test for the salary you might actually land.
Housing
Buy or Rent
Buying a home is sold as the obvious adult move. The math is quieter than that — and often disagrees. See what your wealth actually looks like on each path, with the costs most calculators leave out.
Transportation
Lease or Buy
The dealership asks what monthly payment you can afford. That's the wrong question — leasing almost always wins it, because at the end you own nothing. The honest comparison is wealth over time: what you'd have on each path after the years you'd actually keep the car, and whether you'd really invest the money leasing saves you. The tool runs both, and finds the year the answer flips.
Parenthood
Should You Have a Child?
Childcare is the line people lowball. The income side of caregiving is the line people forget. The tool does both — the first five years of cash-flow shock, and the long-run opportunity cost of a caregiver's reduced income — without pretending the rest of the question is a math problem.
Retirement
Retire or Stay
Most early-retirement calculators answer the wrong question. They give you a savings target. That's the accumulation question. The harder question, once you have a number in hand, is whether it survives forty years and what you're walking toward. The tool works the withdrawal-rate range, names the pre-65 healthcare-and-Social-Security bridge that quietly breaks plans, and asks the honest reflection questions about what comes after.
Nothing here is stored. Nothing is sent anywhere. The math runs in your browser, the reflection stays between you and you.