Run the Numbers: The Freedom Runway Calculation
- Difficulty
- Easy
- Time to result
- ~days to results
- Steps
- 6
- Confidence
- —
Harbinger argues that most of the anxiety driving creators and professionals to chase money they don't need dissolves the moment they actually do the arithmetic. Every year he runs the same calculation: how long must I earn at this level, what happens if I lose half my income, what could I survive on, and what other income streams exist as backup. He then models assets compounding at roughly five percent against an annual withdrawal and checks that the balance does not hit zero before he dies. The answer, for him, was that he could stop working today and draw roughly his current lifestyle in perpetuity while still leaving money to his kids. The second half of the method is interrogating the fantasy itself — asking what you would actually buy, and discovering the answer is usually available already.
Origin
Extracted from Deep Dive with Ali Abdaal
How to run it
- 1
Do the math on a fixed schedule
Harbinger reruns the same calculation roughly once a year rather than treating it as a one-off. The core question is how long you need to keep earning at your current level before the maths works.
Pro tip He uses a compounding calculator app on his phone — the tooling is trivial, the avoidance is the hard part.
- 2
Stress test a 50% income collapse
Model what happens if your income halves through something outside your control — in his case podcast ad CPMs falling. Ask what you could survive on in that scenario rather than assuming the current run rate holds forever.
Watch out The stress test is the point. A plan that only works at today's income is not a plan.
- 3
Put other irons in the fire
Identify secondary income streams that could carry you, even at a lower standard of living. Harbinger cites voice acting for video games — not a large income stream, but enough that if he quit podcasting entirely he could still earn a living.
Pro tip The stream doesn't need to match your main income. It only needs to be survivable.
- 4
Model appreciation against withdrawal
Take your current assets, assume they generally appreciate around five percent a year, subtract the annual amount you'd need to withdraw if you were retired forcibly or otherwise, and check how many years of runway that produces. It had better not hit zero before you die.
Pro tip As earnings rise, rerun it — each increase buys visible extra years of runway.
- 5
Interrogate what the money is actually for
Ask what you would do with a windfall, then ask why, repeatedly. Harbinger's own answer was to put it in the bank to be able to retire safely — which turned out to be already true. His second answer was to hire a healthy-food chef, until a friend pointed out there was a Whole Foods three blocks away.
Pro tip Keep asking why until you hit the underlying want. Harbinger and Abdaal both find it bottoms out at safety.
Watch out Most things you think the money buys you can already have in a different form.
- 6
Convert the result into calendar decisions
Abdaal's version of the same test is asking what would change about his calendar if he woke up with a hundred million in the bank — and if anything major would change, changing it now rather than waiting.
In the wild
A wealthy friend told Harbinger that he had it figured out too — two kids, a wife, his own house, work he enjoyed. He then asked what Harbinger would do with a hundred million dollars. Harbinger said he'd put it in the bank and earn interest, so he could safely retire at any time. The friend replied that he could probably safely retire right now. That conversation was what sent Harbinger to run the numbers, and the realisation was that he did not need to win the lottery to feel safe.
→ One question replaced an open-ended money goal with a finished calculation.
Abdaal met a man at a birthday party who asked how to become financially free. Instead of answering, Abdaal asked what the number was and what it would buy him. The man wanted an extra million within ten years — but he was already married with kids, had a teaching job he mostly enjoyed, summers off and long holidays. What financial freedom actually meant to him was the option to quit on bad days and to hire a cleaner, something he could probably already afford.
→ The stated money goal turned out to be a proxy for two things already within reach.
Common mistakes
Never running the numbers at all
Abdaal admits to a scary background thought of 'what if I run out of money' that persists precisely because it has never been quantified. Harbinger's response is that unless you are recklessly spending you are probably fine — but you have to actually check.
Chasing a windfall number instead of a lifestyle
Aiming at a hundred million or a lottery win keeps the goalposts permanently ahead of you. Runway maths gives a finite, checkable answer that a fixed lifestyle can satisfy.
Assuming the fantasy purchases are necessary
Almost every item people name — the chef, the collection, the second house — turns out to be replaceable with something cheap and available now, or to be a source of stress rather than freedom.
From the transcript
“the only way in my opinion is to do the math and and it's it's funny because every year I kind of do the math…”
“I've calculated that if I stopped working right now I could live on a pretty damn good monthly draw in perpetuity and still leave money…”
“I bet you could safely retire right now that was what got me running the numbers”
From the episode
Lessons from 17 Years of Podcasting - Jordan Harbinger
Jordan Harbinger