Default alive or default dead
Whether Northwind reaches profit on the cash it has: alive as it stands, and a hiring decision that turns on one growth rate.
Runway tells you when the cash runs out if nothing changes. Default alive asks the better question: if costs stay where they are and revenue keeps growing at its recent rate, does the company reach profit before the cash runs out? If yes, it's default alive. If no, it's default dead, and its runway ends in a fundraise it hasn't yet won.
Northwind, as it stands, is the easy case. September's revenue of $31,500 less cost of revenue and operating expenses left a profit of $1,747.40. It's profitable in month 0, so it's default alive before the test starts. Be careful, though: a profit isn't cash. September's operations still used $647.40, because customers owed money and stock was on the shelf. The alive test ignores working capital on purpose, so it's a first screen, not a cash forecast.
The decision that changes the answer
The founders are weighing 2 hires, a salesperson and a warehouse lead, at $5,000 a month gross each. Fully loaded with the employer's payroll tax (7.6%, read off September's payroll), that's $10,765 a month. September's profit becomes a loss of $9,017.60. Is Northwind still alive? It depends entirely on growth.
Default alive isn't a mood. It's a calculation from three inputs (cash, costs and growth), and the one founders guess at is growth.
Wrong
"Runway is 4.3 months on the new burn, so the hires are safe for now."
Right
Default dead at 5% growth: cash runs out in March 2027. Alive at 10%. Hire when growth proves the faster rate.
Runway on today's burn assumes revenue never grows. The alive test assumes it keeps growing as it has. Use both, labeled; the gap between them is how much the plan leans on growth.
Cut or delay costs
- Good at
- Fully in the founders' control
- Works immediately
- Watch for
Can slow the growth that would have fixed the problem
- Best for
- When growth is unproven
Grow faster
- Good at
Fixes the problem without shrinking the company
- Watch for
Not in anyone's control; it's the input most likely to be optimistic
- Best for
- When there's real evidence growth is speeding up
Raise money
- Good at
Buys time to reach profit at the current growth rate
- Watch for
- Takes months, isn't certain, and dilutes the founders
- Raising while default dead is raising from weakness
- Best for
- When the business works and needs time, not a new model
Raising, worked on Northwind: how a raise changes runway.
Where this lesson's rules come from
The sources behind this lesson's requirements, by kind. Background reading explains; it is never the authority for a rule. Anything marked as a convention is ours, not the rule-maker's.
- Background reading — not an authority
- Paul Graham, “Default Alive or Default Dead?” (October 2015) (opens in a new tab)The origin of default alive — a startup convention, not a standardFree to read
- Wikipedia, “Burn rate” (opens in a new tab)Burn rate — backgroundFree to read
The words this lesson teaches
Each links to its glossary definition, which also names the authority behind it and the components that render it.
- Default aliveWhether, with expenses held where they are and revenue growing at its recent rate, a company reaches profitability on the cash it already has. If not, it is default dead and its runway ends in a raiseConvention
- RunwayRunway is a cash and runway metric, calculated as Cash ÷ net monthly burn.Convention
- Net burnNet burn is a cash and runway metric, calculated as Gross burn − cash in, excluding financing inflows.
- Cost of revenueThe direct costs of producing the goods or delivering the services sold in the period — the line gross profit is measured after
- Working capitalWorking capital is a liquidity and working-capital metric, calculated as Current assets − Current liabilities.Convention
- Contribution marginContribution margin is a profitability metric, calculated as (Revenue − Variable costs) ÷ Revenue.
In the founder glossary
This lesson’s ideas, explained for the founder running the company. Each has an entry in the founder glossary.
See also
- Metric definitionsEvery metric in this system ships with its formula, period, inputs and source. A KPI without a definition is a number people argue about in meetings.
- Contribution margin calculatorContribution margin is a profitability metric, calculated as (Revenue − Variable costs) ÷ Revenue.
- Operating margin calculatorOperating margin is a profitability metric, calculated as Operating income ÷ Revenue.
- Burn rate and runway: how to calculate them correctlyGross burn, net burn and months of runway, done the way an investor checks them: from cash, averaged, and with the hires you’ve already committed to.
- RunwayCardMonths of runway with a burn line.
- ScenarioCompareScenarios side by side, all measured against the base.
- ForecastTableProjections dashed and labeled everywhere.