October 1, 2025 – Philadelphia










The word spirit comes from the Latin spīritus, meaning “breath, breeze, air, life, soul.”
- At its core, it derives from the Latin verb spīrāre, “to breathe.”
- In early usage, breath and life were inseparable—breath was seen as the animating force of living beings.
- From there, spīritus developed a broader sense: not just literal breath, but also life-force, vitality, courage, soul, or consciousness.
When the word entered Old French as espirit and later Middle English as spirit, it carried these same dual meanings—both the literal breath of life and the immaterial essence of a person.
So the etymology shows a progression:
- Breath / breathing →
- Vital principle (life itself) →
- Soul, mind, disposition, supernatural being.
That’s why today “spirit” can mean anything from someone’s mood (“in high spirits”) to the immortal soul or even a ghostly being.

The word economics comes from the Ancient Greek term οἰκονομία (oikonomía).
- oikos (οἶκος) → “house,” “household,” or “estate”
- nomos (νόμος) → “law,” “custom,” or “management”
So, oikonomía originally meant “household management” or “management of the household and its resources.”


By Saifedean Ammous
Dr. Saifedean Ammous, author of The Bitcoin Standard and The Fiat Standard, returns with his most ambitious work yet: Principles of Economics. Rather than focusing narrowly on money, this book lays out the entire Austrian framework of economics from first principles.
Here, Ammous builds from human action, value, and time, and moves outward into labor, property, capital, technology, trade, money, and ultimately civilization itself. The goal is simple yet profound: to show that economics is not about equations or government statistics, but about how human beings act to solve the problem of scarcity across time.
Links to lecture notes that I made on the different chapters covered @ saifedean.com
Definition: Economics begins with purposeful human action — individuals using scarce means to achieve chosen ends.
This framework rejects mechanistic models and grounds economics in subjectivity, uncertainty, and choice.
Scarcity forces us to economize — deciding how to use labor, land, and tools.
The lesson: civilizations rise or fall depending on how they manage labor, property rights, and energy.
Humans coordinate through trade. Voluntary exchange makes both sides better off and fuels the division of labor.
Here, Ammous emphasizes that markets are not chaos — they are emergent order.
Time preference governs civilization.
This is Ammous’s Austrian cycle theory in action: fiat systems can’t escape their own distortions.
Finally, Ammous expands the lens to society itself.
Economics, in this view, is not just about wealth — it’s about sustaining the very conditions of human flourishing.
Principles of Economics is a return to the roots of economic thought. By grounding the science in human action, property, time, and sound money, Ammous provides a framework not only for understanding markets, but for understanding civilization itself.
Just as The Bitcoin Standard made the case for sound money, and The Fiat Standard exposed fiat’s decay, this book offers the positive vision: the economic principles that allow humanity to thrive.

Dr. Saifedean Ammous, author of The Bitcoin Standard, expands his analysis of money by examining the fiat system. He argues that fiat money is not a neutral tool but a system of centralized debt, coercion, and control. While The Bitcoin Standard looked at the rise of sound money, this book critiques the century-long experiment with fiat currency.
Links to lecture notes that I made on the different chapters covered @ https://saifedean.com
The Fiat Standard positions fiat currency as a system of control that undermines civilization by distorting incentives, values, and institutions. In contrast, Bitcoin offers a way out: a decentralized, incorruptible, and sound monetary standard for the digital age.

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The Bitcoin Standard
By Saifedean Ammous
Dr. Saifedean Ammous, author of Principles of Economics and The Fiat Standard, first made his name with his groundbreaking book The Bitcoin Standard. Here, Ammous tells the story of money itself — from primitive shells and stones, to precious metals, to government fiat, and finally to Bitcoin as the world’s first form of digital scarcity.
This lecture series distills the key arguments of the book into a structured curriculum. Rather than focusing only on Bitcoin’s technology, Ammous grounds the discussion in the history of money, the failures of fiat, and the civilizational role of sound money.
Links to lecture notes that I made on the different lectures covered @ saifedean.com
The Bitcoin Standard is more than a book about technology or investing. It is a story about civilization itself: how sound money allows humanity to plan, build, and thrive — and how fiat corrodes culture, freedom, and prosperity.
By introducing the first truly scarce digital asset, Bitcoin represents not just an upgrade to money, but an upgrade to civilization.
Just as Principles of Economics lays out the Austrian framework, and The Fiat Standard exposes the rot of fiat, The Bitcoin Standard provides the foundation: the monetary revolution of our time.

Re-Educating Philadelphia for True Health
Dear Mayor Parker,
Philadelphia is facing a metabolic health crisis that can no longer be ignored. The numbers speak for themselves:
That means only 4 in 10 adults in our city are truly healthy. The rest carry the burden of chronic disease — a burden that shortens lives, weakens families, and drains our city’s future.
This is not just bad luck. It is the result of failed nutrition guidelines, failed education, and failed leadership.
Our city health officials still operate under the USDA food pyramid and MyPlate models, which:
These models were built on flawed science. In the decades since they became policy, obesity, diabetes, and metabolic disease have exploded in Philadelphia.
It is time to admit the truth: this paradigm has failed.
Nutrition alone is not enough. To reverse this epidemic, we must also restore movement, strength, and sunlight to the daily rhythm of our children’s lives.
These are not luxuries — they are necessities for human health.
To make this vision real, Philadelphia must secure a direct partnership with farmers who produce nutrient-dense, animal-based foods. We propose:
We recognize that federal reimbursements tie our schools to failed USDA food models. If Philadelphia must step away from those funds to protect our children, then let us lead with courage and vision.
The cost of inaction is higher: Philadelphia already pays dearly in lost health, lost years, and lost potential. Investing in real food is investing in the survival of our city.
Imagine a Philadelphia where:
Philadelphia can be the first major American city to reject the broken food pyramid and embrace real health. But it will take bold leadership, courage, and the will to say: our children should not eat poison.
Respectfully,
Dante Sisofo
When the U.S. left the gold standard in 1971, the dollar became fiat—backed only by confidence in the government and the Federal Reserve. To see the impact, look at something tangible and timeless: the price of beef and the cost of a cow.
In 1913, a cow cost about $8 — or 0.39 ounces of gold.
In 2025, a cow costs about $2,500 — or 0.66 ounces of gold.Measured in dollars, cows are ~300× more expensive.
Measured in gold, cows are nearly the same price.
| Year | Price of Beef (per lb) | Price of Cow (per head) | Gold Price (per oz) | Cow in Gold (oz) |
|---|---|---|---|---|
| 1913 | $0.12 | $8 | $20.67 | 0.39 |
| 2025 | $5.50 | $2,500 | $3,760 | 0.66 |
This highlights how the devaluation of the dollar, not the scarcity of cows or beef, explains the dramatic rise in food prices. Gold, unlike fiat money, has preserved purchasing power across generations.
Big picture: What looks like inflation in dollars often recedes when measured in gold. Beef is a clear example.
By Saifedean Ammous
The final lecture reinforces Bitcoin’s role as apolitical, immutable, decentralized money. Its energy use is not waste but progress; its volatility does not prevent monetization; and its immutability is proven by failed attempts to change it. Altcoins fail the neutrality test, while fiat enables wars, inflation, and surveillance. Bitcoin, like Linux, is the underground infrastructure of a freer economy. Privacy will emerge via second layers, while Bitcoin itself becomes the neutral global settlement layer. Sound money prevails, fiat fades.
By Saifedean Ammous
Bitcoin is the first and only strictly scarce asset in history. All other resources can be increased with more effort; Bitcoin cannot. This makes it the hardest money, uniquely suited as a store of value. Scarcity should be understood in terms of opportunity cost, not fixed resources — human ingenuity expands supply of everything but Bitcoin. With its rising stock-to-flow, Bitcoin channels effort into productive goods rather than money printing. Early adopters earned their place by taking risks, and Bitcoin eliminates monetary privilege permanently. It is the cheapest way to buy the future.