mathmydecisions · flagship tool nº 1

Can I afford this life change?

The saner job. The career break. One income. Stopping early. Every option below is one of 4,000 simulated futures for the same decision — some soar, some break. This tool shows you the whole fan, weighted by what you value, with every assumption on the table.

~4 minutes · nothing leaves your browser
── futures that hold── futures that thrive── futures that break· one dot: you, today
Wise decisions = Emotions + Equations

You account for the emotions. We supply the equations. It never tells you what to do — it shows what each choice actually costs and gains, in dollars and in the things you care about.

How it reads a decision
Structure the mess

Your numbers, the specific change, and the assumptions — every one visible, every one editable. Nothing hidden is the whole point.

Simulate the futures

4,000 possible market histories, not one false average. You get ranges and probabilities: the odds you're never forced back, and when the unlucky paths bend.

Weigh it your way

Safety, freedom, wealth, time — you set the weights. Two people with identical finances get different honest read-outs, because they should.

What this is — and isn't
A decision engine, not a planner.
Account-first planners model your whole financial life. This starts from your fork in the road and answers that.
Probabilities, never point estimates.
A single number about the future is a polite lie. You'll always see the range and the odds.
Auditable by design.
Deterministic, seeded simulation: same inputs, same outputs, every time. The methodology is one click away.
Not advice.
It won't tell you to quit, and it won't sell your decision to an advisor. It shows you the trade — you make the call.
mathmydecisions.com · deterministic, seeded, auditable · your numbers never leave your browser until you choose to save
Can I afford this life change? | MathMyDecisions