It’s not the number. It’s what the number represents.
By Blake Warren, Founder of The Bitcoin Warren
You clocked out at 5:30. Eight hours of your life, already spent and already gone. You will not get those hours back. They are not sitting in reserve somewhere, waiting. They happened, and now they exist as a piece of paper with a number on it.
That piece of paper is the reason the previous guide mattered. What causes inflation and why the dollar keeps eroding is one question. What exactly erodes when the dollar loses value is a different question. The answer is not an abstraction. It is your time. Money is time – stored in a unit that is slowly losing what it holds. This guide explains the mechanism behind that erosion and what it costs over a working lifetime.
What’s in this guide
- You have been storing time, not money
- Your real hourly rate is lower than your payslip shows
- New money costs nothing to create, but it costs you something real
- Why you have never seen this despite living inside it
- What the numbers in your account are not telling you
- What four decades of disciplined saving actually retains
- The structural explanation for a feeling you have had for years
You are not saving money. You are storing time.
That piece of paper is a record. It says: this person traded a portion of their finite life and here is the unit we gave them in return. The account balance is not a pile of money. It is a record of hours already given.
The writer Vicki Robin framed it precisely in Your Money or Your Life: money is something you trade your life energy for.
Every dollar in your account cost you something that cannot be manufactured, stored, or recovered. It cost you time. Not time in the abstract. Time from a life with a fixed and unknown length, spent doing things you would not have done for free.
This framing changes what money is. It is a container. Money holds the stored value of hours you already worked, days you already spent, weeks of your life already gone, to be spent on your terms later. The question most people never think to ask is whether the unit those hours are stored in holds its value.
If money stores time, the quality of the container matters far more than most people realise, and far more than the balance on your statement will ever tell you. What follows is what happens when the container has a hole that nobody mentioned.
What your time actually earns
Most people know their salary. Fewer have calculated what they actually earn per hour of life the job consumes.
The gap between your wage and your real rate
The standard calculation divides gross salary by contracted hours. That produces a number. It is not the real number.
The real number accounts for what the government takes before you see it and for the hours the job actually costs, not just the hours on the contract.
Your employment contract says 38 hours a week. The two hours commuting are not on the contract. The time winding down before you can be a functioning human at home is not on the contract. The Sunday evening dread is definitely not on the contract. Your employer is paying for 38. You are contributing considerably more than that.
Then there is the money the job forces you to spend: fuel, parking, lunches, work clothes. Strip those out and the real rate gets smaller again.
The real hourly rate table
The table below uses three common Australian salary bands. Tax is calculated at 2024-25 ATO rates including the Medicare levy. Real hours assume a conservative 40 hours per week: 38 contracted hours plus approximately 2 hours for commuting and preparation. Most Australians contribute more once longer commutes and wind-down time are included. Real work costs are estimated at $100 per week, which is conservative. Fuel, parking, and lunch alone often exceed this.
| Salary | Gross hourly | After-tax hourly | Real hourly rate | $1,000 = X real hours |
|---|---|---|---|---|
| $60,000 | $30 | $25 | $21 | 48 hours (1.2 work weeks) |
| $90,000 | $46 | $35 | $30 | 33 hours (just over 4 work days) |
| $130,000 | $66 | $48 | $43 | 23 hours (nearly 3 work days) |
Based on illustrative assumptions. Your actual rate will vary depending on your commute, costs, and personal tax situation.
A long weekend away with friends: decent accommodation, a few meals out, fuel there and back. About $1,000. Not extravagant. On a $60,000 salary, that weekend cost 48 real hours. Just over six working days. Most people call it a grand. The table calls it six days of a finite life.
That $1,000 cost you time. The dollars are a middleman. What you actually spent was stored time.
Now apply what the previous guides covered. Those hours do not hold their value. The money supply has been growing faster than wages for decades. The dollars you earned today will buy less than the dollars you earned last year. The stored time you traded is worth a little less by the time you go to spend it.
The next section explains why that gap is not equal on both sides.
Your hours cost everything. New money costs nothing.
Every dollar in your account was bought with your life, real hours from a finite supply, already spent and already gone. That is the cost of your money.
New money has a different cost.
When the money supply expands, new dollars enter the system. They are created through lending, deficit spending, and central bank operations. The full mechanics of how new money is created are covered in a later guide. What matters here is the cost.
The Asymmetry: Your Time vs a Keystroke
Your $100,000 salary required approximately 2,000 hours of your life this year. The alarms. The commutes. The meetings. The problems you solved for someone else. Every hour spent once and gone permanently.
The monetary expansion that diluted it required a policy decision and a keystroke.
The new money carries the same denomination as yours. It makes the same purchasing power claim. It just did not cost anyone anything to create.
Your salary took a year of your life. The erosion took a keystroke.
This is the inflation tax. Not a line item in any budget. Not a fee you can see. A continuous, invisible transfer of purchasing power from everyone who holds savings to whoever receives the new money first, through the simple arithmetic of dilution.
What that means for stored time
When new units are created, the fraction of total monetary value your stored hours represent shrinks. Not through a transaction anyone can see. Through arithmetic. The value did not disappear. It transferred to whoever received the new money first, without consent, without notice, and with no compensation offered.
The reason nobody is angry about this is the subject of the next section.
The mechanism is invisible by design
Here is why you have never seen this despite living inside it your entire working life.
Every financial measurement you interact with is denominated in dollars. Your salary. Your savings balance. Your superannuation statement. Your net worth. All measured in dollars. When the dollar erodes, every measurement taken in dollars looks normal. The salary went up. The account balance grew. The super statement shows a bigger number than last year.
The ruler looks right because the numbers on it are printed by the same people making it shorter.
When the unit of measurement is the thing being debased, the debasement is invisible from inside the system. The numbers say the salary went up. Your lived experience says life got harder. Both are true at the same time. The mechanism explains why: the number grew, but the unit it is measured in eroded faster.
When you opened your first bank account, they handed you a terms and conditions document. Fees. Interest rates. Disclaimers. What was not in that document was a section headed something like: ‘The purchasing power of each deposit will be reduced continuously, at roughly the rate the money supply expands, for as long as you hold this account.’ The data to write it exists. The Reserve Bank publishes it monthly. It just did not make the brochure.
So it is invisible. But what has it actually done to the account you checked this morning?
What the mechanism does to your savings and your salary
Two scenarios. Both use real numbers. Both describe the same mechanism.
The savings account
You have $50,000 in a savings account earning a generous 5% nominal interest, meaning the raw dollar figure on your statement. At the end of the year, your statement shows $52,500. You earned $2,500 in interest. A reasonable return. The kind of number that makes a savings account feel like it is doing its job.
Over the same period, the money supply has grown at its long-run average rate of approximately 10.3% per year, the compound annual growth rate from 1971 to 2025 published by the RBA. Individual years vary. The structural direction has been consistent for over fifty years.
On a $50,000 balance, 10.3% is approximately $5,150 of purchasing power quietly transferred away. The statement shows you gained $2,500. The real purchasing power position is approximately -$2,650.
Both numbers describe the same account. Only one appears on the statement. The account cannot tell you this because the account is denominated in the thing being eroded.
The number went up. The stored time it represents went down.
Illustrative only. 5% nominal annual return against M3 growth of 10.3% (RBA D3 CAGR, 1971–2025). Individual years vary. This is not financial advice.
The pay rise
Your salary goes from $100,000 to $103,800. An increase of 3.8%, in line with average wage growth in 2025 (ABS 6302.0). Your employer held up their end. They gave you a raise.
In the same year, the M3 (Broad Money) supply grew by 7.2% (RBA D3, 2025).
Your offer letter shows an extra $3,800. The purchasing power of the unit you are paid in fell by 7.2%. On a $100,000 salary, that is approximately $7,200 of real value eroded.
The offer letter says you are ahead by $3,800. The mechanism says you are behind by approximately $3,400.
Your employer gave you a raise. The system took more. Your employer is not the problem. They kept their end of the deal. The gap between wage growth and money supply growth does not close because your boss is generous or stingy. The gap is structural. It existed last year and will exist next year for the same reason.
Your employer kept their end of the deal. The unit they paid you in did not.
The real value of your working years
Everything above describes the mechanism year by year. This section runs it over a working lifetime.
The working years value table
Assume you save diligently throughout your career and earn a 5% nominal annual return on your savings, a generous assumption for a high-interest savings account. Against money supply growth of 10.3% per year (the compound annual rate from 1971 to 2025, RBA D3), here is what happens to the stored value of your working years.
| Years worked | % of time retained | Years retained | Years erased |
|---|---|---|---|
| 10 years | 61% | 6.1 years | 3.9 years |
| 20 years | 37% | 7.5 years | 12.5 years |
| 30 years | 23% | 6.8 years | 23.2 years |
| 40 years | 14% | 5.6 years | 34.4 years |
Assumes 5% annual nominal return (generous high-interest savings rate). M3 CAGR 10.3% (1971–2025, RBA Statistical Table D3). Figures are illustrative of the structural relationship between savings returns and money supply growth. Your actual experience will vary. This applies to savings held in cash or a savings account. Assets like property and shares behave differently, and a separate guide in this series examines how they compare.
Forty years of work. Of discipline, of showing up, of saving what you could. At a generous return on your savings, 14% of the stored value remains. That is 5.6 years retained out of forty. The other 34.4 years were erased.
Not through a bad decision. Through holding savings in a unit whose supply expands faster than the return those savings earn.
This does not mean saving is pointless. It means the container matters. What you save in changes the outcome more than how much you save.

You have the buckets. You automated the transfers. You read the book and followed the steps.
There is no chapter for this. There is no bucket labelled ‘ongoing structural dilution at the monetary level.’ Nobody wrote it. It was not in the curriculum either.
Financial independence keeps moving further away regardless of discipline, ambition, or effort. The stored value of past work keeps leaking while future work is accumulated into the same leaking container.
Most people respond by pouring faster. But the leak is proportional. Pour twice as much, lose twice as much. The only effective response is a container that does not leak.
Every expansion of the money supply raises the amount of stored time you need to accumulate before work becomes optional. The threshold keeps moving. Not because of anything you did, but because the unit you are storing time in keeps being diluted.
What This Means When Money Is Time
If you have been feeling like you are working harder and getting further behind, you now have the explanation. The numbers grew. The time they represented did not. That gap is not a personal failing. The container had a hole that nobody mentioned when they handed it to you.
A structural explanation for a structural feeling is not self-blame. It is clarity.
Some people reach this point and think: property solved this for my parents. Assets go up. That is the point.
It is worth being precise about what that means. When the dollar shrinks, everything measured in dollars appears to rise, including asset prices. Some of that is real value creation, a better location, a renovated kitchen, a growing city. Some of it is simply the unit getting smaller and the number getting bigger to compensate. The two are mixed together and almost impossible to separate from inside the system.
There is also a tax dimension worth understanding. When you eventually sell an asset and the price has risen, the gain on disposal may be taxed in full on that nominal number – not on the portion that represents real value growth above inflation. The part of the gain that was simply the dollar shrinking does not reduce your tax bill. You pay tax on the illusion alongside the reality.
Assets may still be the better container than a savings account. But the container is not airtight. The hole is smaller and works differently. A later guide in this series examines how different asset classes have actually held value over time, measured in something more stable than the unit being eroded.
Understanding the system changes the question. Not ‘how do I work harder’ or ‘where do I cut back.’ The question becomes: what kind of container holds the value of time reliably?
No villain is required for this to make sense. Politicians spend because incentives reward it. Central banks expand because the mandate requires it. Nobody had to sit in a room and decide to make each generation’s race harder.
The deeper issue is not only who runs the system. It is the properties of the unit the system uses.
That question is why Bitcoin becomes worth studying later in this learning path. It was designed around a property the dollar does not have: a supply that cannot be expanded by policy.
That is what the Bitcoin Basics series is built to examine.
You now understand that money stores the value of your time. The next question is what money is supposed to do, and whether the dollar actually passes those tests.
NEXT IN THIS SERIES
The Three Tests Your Money Fails
You now know what money is supposed to protect. The next guide shows the three tests it must pass, and whether the dollar actually passes them.
KEY TAKEAWAYS

Money is stored time.

The container has a hole.

The mechanism is invisible.

Your savings went backwards.

34.4 years erased out of 40.
Common Questions
Is the inflation tax a real tax?
Not in the legal sense. There is no line item in any budget, no legislation, and no vote. The inflation tax is the name for the purchasing power that transfers from holders of cash and savings to borrowers and early recipients of new money when the money supply expands. The effect on your savings is the same as a tax. The mechanism is debasement, not taxation. But the outcome, less purchasing power for the same amount of effort, is identical.
What does ‘money is stored time’ actually mean?
Every dollar you earn cost you time. That time was real, finite, and irreversible. The dollar is the unit you received in exchange for it. When that unit loses purchasing power, the stored time it represents erodes. You cannot get the hours back. The only thing you can control is what kind of container you store them in.
Is the 10.3% money supply growth rate still happening?
The 10.3% figure is the compound annual growth rate of Australia’s M3 money supply from 1971 to 2025 (RBA Statistical Table D3). Individual years vary. In 2025, the year-on-year growth rate was 7.2%. The structural direction has been consistent for over fifty years, but the rate in any given year will differ from the long-run average.
Why does my savings account show growth if I am actually losing?
Because the account is denominated in the unit being eroded. The nominal balance grows. The purchasing power behind that balance can erode at the same time. If your savings earn 4% and the money supply grows at 10.3%, the account shows more dollars while the real purchasing power position (-6.3%) is negative. The statement cannot show you this because it measures everything in the unit that is eroding.
Why did nobody teach me this?
The mechanism is not hidden. The data is published monthly by the Reserve Bank of Australia. But it is not part of any standard financial literacy curriculum. The advice most Australians receive focuses on budgeting and saving, which are useful skills but do not address the structural erosion of the unit those savings are stored in.
Does this mean saving is pointless?
No. Saving is essential. The question is what you save in. Holding cash or a low-interest savings account means holding a unit that has been losing purchasing power structurally for over fifty years. Understanding the mechanism opens the question of whether there are containers that do not have the same leak. The Bitcoin Basics series covers one answer to that question.
How does this affect superannuation?
Superannuation balances are typically invested in a mix of assets including shares, property, and bonds, which may partially offset money supply growth over long periods. The working years table in this guide assumes a savings account return specifically to illustrate the mechanism on the most common form of saving. Superannuation involves different asset classes, fee structures, and regulatory rules. A licensed financial adviser can help with questions specific to your super.
What is the Cantillon Effect?
When new money enters an economy, it does not arrive everywhere at once. The people and institutions who receive it first can spend it before prices adjust. By the time the money reaches wages and consumer prices, the adjustment has already happened. This uneven distribution of newly created money is called the Cantillon Effect. A later guide in this series covers it in detail.
What is the difference between nominal and real?
A nominal figure is the raw number. Your salary, your account balance, the price on a tag. A real figure adjusts for the change in purchasing power. Your salary can be nominally higher than last year while being lower in real terms if the purchasing power if the dollar fell faster than your pay rose. Most financial figures you encounter are nominal. The gap between nominal and real is where the inflation tax lives.
Is there a form of money that does not have this problem?
Yes. A monetary system with a fixed, mathematically enforced supply cannot be expanded by any decision, policy, or institution. Bitcoin has a maximum supply of 21 million units, enforced by code that no individual or organisation controls. The Bitcoin Basics series explains how this works and why it matters.
Where does the lost purchasing power go?
It transfers. When the money supply expands, the new money enters the system and competes with existing money for the same goods and services. Whoever receives the new money first – typically financial institutions, governments, and large borrowers – benefits before prices adjust. By the time wages and consumer prices catch up, the transfer has already occurred. The purchasing power did not vanish. It moved.
