Heard something about Bitcoin? Check it.
Type the claim. You get my answer from the book right here, and a link to the Bitcoin Evidence Base when you want research and sources.
The fair objection in every chapter
Each chapter ends with the strongest objection I hear in class. Click Check it to read my answer.
- Chapter 1. Bitcoin made simple“If a bitcoin is just an entry in a ledger, how is that different from the number in my checking account? That is an entry in a ledger too.”
It is, and the comparison is the right way to understand the difference. Your bank keeps one copy of its ledger. You cannot see the whole thing. Within the law, the bank can edit it, reverse an entry, freeze your entry, or close it. It can also create new entries by lending, which is how most dollars come into existence, as Chapter 3 will describe. You accept all of that because the bank is regulated, insured up to a limit, and someone is there to call.
Bitcoin’s ledger has thousands of identical copies, all public. No entry has been changed after the fact since 2010, when a bug let someone create billions of coins, and the network agreed to roll the ledger back, the one exception in its history. No entry can be created outside the schedule. No one can freeze yours. In exchange, there is no one to call. If you lose your private key, the entry stays on the ledger forever, and you can never move it. The bank’s ledger gives you a manager and takes away your control and agency over your own money. Bitcoin gives you control and takes away the manager, allowing you to have agency over your own money. That can feel scary, because most of us have never managed our own money without a manager. The chapters ahead are about doing it well.
- Chapter 2. How people find Bitcoin“Isn’t the adoption curve just a story people tell themselves so they feel smart for buying early?”
Partly, yes. The curve gets used as a sales pitch, and you should be suspicious whenever it is.
The curve does not tell you that Bitcoin will succeed. Plenty of technologies stalled at a few percent and died. What the curve tells you is only this: Bitcoin has been adopted by more people, more companies, and more governments every year for more than 17 years, through crashes that would have ended a fad. That is a statement about the past. This chapter’s only claim is that you are not too late to understand it.
- Chapter 3. Where money comes from“Economists say a little inflation is healthy, and the Fed targets 2% on purpose. The gold standard had its own panics and depressions. Isn’t this chapter just nostalgia for a system that failed?”
The Fed does target 2%. The case for it is serious: a small, steady rise in prices leaves the Fed room to cut rates in a downturn, lets wages adjust without pay cuts, and keeps the economy a safe distance from falling prices. Falling prices, which the country suffered in the early 1930s, can be more destructive than rising ones, because debts stay fixed while incomes shrink. The gold era had panics of its own, and most historians judge that rigid gold rules made the Depression worse. This chapter has not argued for that.
Its claim is narrower. The 2% target is a choice made by a committee, and it compounds: at 2% a year, a dollar loses half its buying power in about 35 years. That loss falls hardest on people who hold cash or live on fixed incomes. It falls lightest on people who own assets, like stocks and homes, and on those closest to where new money enters: banks, large investors, and the government itself, which owes trillions of dollars and repays them in dollars’ worth less. Researchers who study who gets new money first find a clearer effect on asset prices than on wages. To be fair, the same low rates that lifted stocks after 2008 also brought unemployment down, which helped low-wage workers most. Whether that trade is worth it is a fair debate, and most people were never told the terms. A saver can beat the slow loss by moving cash into Treasury bills, I bonds, or other inflation-protected bonds, at the cost of paying attention. Treasury money market funds paid 4 to 5% from 2023 to 2025, more than inflation, and I bonds paid 9.62% for six months in 2022. The chapter’s point is about cash, and about who was ever told. Bitcoin’s answer is simple: money whose supply is set by a rule, not by a committee. Chapter 1 described that rule. Chapter 7 is plain about what Bitcoin gives up to keep it. You may read both and decide the trade is not worth it. That is allowed.
- Chapter 4. How it stays honest without a boss“You say nobody is in charge, but I read that two mining pools account for more than half of all the blocks. Isn’t that a boss with a different name?”
The concentration is real. In the year to September 2026, the two largest pools, Foundry USA and AntPool, together found nearly half of all blocks. That deserves attention, and people in Bitcoin give it plenty.
Two facts limit what it means. A pool is not a miner. It is a coordinator that many independent miners point their machines at, and a miner can switch pools in an afternoon. When one pool briefly passed half the network in June 2014, miners left it, and its share fell to about a third within a month. And even a pool with a majority runs into that old laptop in Oklahoma City. It could delay transactions or reverse its own, at enormous cost. It could not create coins, spend yours, or change a rule, because the nodes would refuse the blocks.
So the objection is half right. Mining is more concentrated than the ideal, and if it got worse, the network would be weaker. But concentration doesn't put anyone in charge of the rules. That power sits with whoever checks, and there are roughly 26,000 of them.
- Chapter 5. When money fails people“Every case in this chapter is another country or an emergency. I live in the United States, my deposits are insured, and there are courts. Isn’t this fear dressed up as history?”
Part of that is right. Since 1934, no depositor has lost a cent of insured money in an American bank failure, including in 2023, when regulators went beyond the insurance limit to cover everyone at two failed banks. At the larger of the two, Silicon Valley Bank, the trouble was an old one: deposits that could leave overnight had been put into long-term bonds that lost value when interest rates rose.
Three things stay true after you grant all that. The slow version is in the price index. Canada is a wealthy country with independent courts, and its freeze took one week and one list. And the deposit agreement you just read says what it says.
I am not asking you to be afraid. Fear is a poor reason to do anything with money, and it is the first tool every scam in Chapter 11 reaches for. I am asking you to notice one small thing. Until 2009, the question “who can stop me from using my own money?” had the same answer everywhere: someone. Now there is a form of money where the answer is different.
- Chapter 6. Why the price of bitcoin rises and falls“Isn’t this a greater-fool story? Bitcoin pays no interest and no dividend. The only reason the price goes up is that someone else will pay more. Doesn’t that make it a game of finding the next buyer?”
That is the strongest objection in this book, and the answer has two halves.
The first half concedes the point. Bitcoin produces nothing. It pays no rent, earns no profit, makes no tangible product, and pays no coupon. Its price in dollars is entirely what the next person will pay, and if no one wants it, it is worth nothing. That is true. It is also true of gold, of a dollar bill, of a painting, and of a house in a town where everyone has left. Gold has some use in jewelry and industry, and the dollar is demanded for taxes, but most of what each is worth is still what the next person will pay. None of those things has value in itself. They have value because people want them for something. So the greater-fool question is really a different question: is there any reason to want bitcoin other than selling it to someone else?
The second half answers that. People use bitcoin to send money across a border in minutes without asking a bank. They use it to hold savings that no government can print more of. They use it because no one can refuse them an account. If those uses matter to no one, then the greater-fool description is correct, and the price will eventually show that. If those uses matter to more people every year, then the people holding it are not fools waiting for fools. I owe you one more concession. By my own count at the start of this chapter, most people buy bitcoin today for the number, so most of today’s demand is the kind the objection describes. The uses are real, and they are still the minority. They use something useful, and the price reflects that use.
What the record shows, through October 2026, is 15 years of more users, more holders, and more institutions at each cycle, through four crashes that should have ended a pure greater-fool game. Beanie Babies did not survive their crash. That is evidence, not proof.
Your decision. Everything in this chapter is history. Whether any of it should change what you do with your money is a question for you, and for a financial advisor who can see your whole situation. If you are near or in retirement, ask about the years, not the returns: how many years could this money sit untouched? An estate attorney belongs in the conversation once the amount is one your family would need to find. I have given you the record and the tools. The research and decision is yours to make.
- Chapter 7. Fair questions, honest answers“Governments hold it. BlackRock sells it. If the biggest institutions on earth own Bitcoin now, hasn’t it become the thing it was built to escape?”
Partly, and I will not pretend otherwise. When a large share of bitcoin sits inside funds and exchanges, most holders are back to trusting a company, which is the arrangement Bitcoin was designed to make optional. If those custodians ever became the only practical way in, the network’s rules would still hold, and the culture around it would have lost something real.
Two things keep the objection from being the whole story. The rules have not changed because the holders have. BlackRock cannot mint a bitcoin, freeze the ledger, or vote itself a larger supply, and neither can the United States government. And the exit is still open. Anyone who holds through a fund can withdraw to keys they hold themselves.
- Chapter 8. Are you ready? Rate your own financial literacy“You teach Bitcoin. Isn’t a chapter about how exposed my savings and my 401(k) are just a way to soften me up before the pitch?”
That is a fair take. I have no product to sell beyond this book, and no stake in any account, fund, or app named here; the copyright page says what I do hold. Weigh my words with that in view, the way Chapter 11 will ask you to weigh anyone who holds what they praise.
A related question comes up in almost every class: isn’t Bitcoin a Ponzi scheme, and aren’t I just recruiting? A Ponzi scheme has an operator who collects new investors’ money and uses it to pay earlier investors the returns he promised, until the new money stops. Bitcoin has no operator to collect anything, and it promises no return. When you buy, your dollars go to whoever sold, at a price you both agreed on, not to me or to anyone at the top. The price can still fall hard, and people who buy at a peak can lose a lot. That is a risky market, not a fraud. As for my own stake: for holders like me to gain anything that matters, millions of people around the world would have to choose bitcoin, not one reader of one book. Think of me as a chef who serves the healthy meal and hands you the recipe, not the tasty one that keeps you coming back. You decide whether to eat it.
Every exposure listed here is in the fine print of the account itself. None of it depends on Bitcoin being worth anything. If you closed the book now and took your 1-page list to a CPA, the chapter would have done its job.
- Chapter 9. Your first purchase“Isn’t dollar-cost averaging just a way to make buying something risky feel responsible?”
Partly, yes, and the people who sell it as a strategy owe you a fuller answer than they usually give. Buying on a schedule does nothing to the risk of the thing you are buying. If bitcoin went to zero, a schedule would buy zero more slowly. Vanguard’s study, which Chapter 6 described, found that a lump sum beat spreading it out about two-thirds of the time, because markets rose more often than they fell. The lower average cost in my 4-month example is arithmetic, and arithmetic works against you in a market that only rises.
The schedule changes the buyer. It makes the amount small enough to ignore, removes the daily decision that loss aversion gets wrong, and turns a purchase into a habit that survives a bad year. Those are claims about you, and they hold up.
- Chapter 10. Keeping it safe“Isn’t self-custody just moving the risk from a company to me? I am not a security expert. A company at least has one.”
Yes, in part. Self-custody moves the risk to you, and for a lot of people the truth is that they are the bigger risk. More bitcoin has been lost to mistakes than to thieves and bankrupt exchanges combined, and I said so under Worth repeating.
Two things are still true. First, the company’s expert protects the company. When FTX failed, its security team was fine. Its customers were creditors. A well-run exchange reduces the chance of a hack, and does nothing about the chance of a freeze, a bad loan or a fraud, because those come from the company itself. Second, the ladder exists because “company or me” is a false choice. A phone wallet with a tested paper backup is not expert work. It is the level of care people already give to a passport. Collaborative custody exists for people who want their own keys with someone on call. And an audited custodian, chosen with open eyes for a small amount, is a defensible rung for the person who knows they will lose the paper. In 2026 the objection gained a second argument: the 2026 stories in this chapter showed that careful self-custody can still fail through someone else’s mistake. That is why the first rung now includes a fund as well as an exchange.
The chapter does not ask you to become an expert. It asks you to know which promise you are holding, and from whom.
- Chapter 11. Scams, frauds and red flags“If Bitcoin attracts this many scams, doesn’t that tell you something about Bitcoin?”
It tells you two true things. Bitcoin is valuable, and Bitcoin payments can't be reversed. Thieves go where the value is, and scammers ask to be paid in whatever cannot be clawed back. That is why the FTC’s fraud losses are led by bank transfers, crypto, wire transfers, and gift cards, in that order in 2024 and another order in other years. Nobody proposes closing the banks because bank transfers lead the list.
It also tells you something less flattering, and I will not spin it. The world around bitcoin has been worse than most. It grew fast with no gatekeeper; the word “crypto” drew in thousands of tokens built to be sold, and for years the culture tolerated giveaways, pumps, and guaranteed-yield lenders as if they were part of the same project. They were parasites on it. The public ledger has made some of those people easy to catch, and the collapses of 2022 cleared a good deal out, but a beginner still walks into a field with more traps than a brokerage account has. This chapter exists because that is true.
And finality cuts both ways. No one can reverse a payment you regret, and no one can reverse a payment a thief regrets either.
- Chapter 12. Spending, sending and Lightning“If 92% of Salvadorans do not use it and every sandwich is a tax event, isn’t ‘spending bitcoin’ a hobby for enthusiasts?”
In the United States today, mostly, yes. Cards are convenient, the tax rules discourage small spending, and the number of places that accept bitcoin is small next to the number that accept cards. Most people who own bitcoin here hold it and rarely spend it, and I do not pretend otherwise.
Two things complicate the picture. First, the enthusiasts are not the point. Lightning’s clearest wins are where cards fail: the immigrant sending $200 home, the merchant losing 3% and a chargeback, the podcast host who gets paid a penny at a time by listeners who could never mail a penny. Those are people with a problem, and Lightning is a tool they use. The second is that infrastructure gets built before it is busy. Fedwire and the card networks took decades to become invisible. Lightning has run for eight years. Whether it becomes ordinary is a question no one can answer, and the way to hold it is as a tool you know how to use and have chosen, so far, not to use much.
- Chapter 13. Where bitcoin fits in your money“Isn’t all of this, the keys and the letters and the metal plates, a lot of work and risk for something I could just hold in a fund in my brokerage account like everything else I own?”
For many people, yes, and the fund is the right fit. If you want exposure to the price, you want one statement, and your heirs already know how to deal with a brokerage, the fund does that with the fewest new habits. I would never tell someone that was the wrong choice.
What the fund does not give you is what the earlier chapters were about. You cannot send fund shares to a daughter abroad in 10 minutes on a Sunday. You cannot hold them outside a system that once refused James an account. Your claim runs through a fund company, a custodian, and a market that closes on weekends, and if any of those has a bad day, so do you. The fund is bitcoin’s price without bitcoin’s properties. Holding your own keys is the reverse: all the properties, and all the responsibility, including the tax records and the letter.
Those are different products for different purposes, and plenty of people hold some of each. The objection is fair as far as it goes. It only stops being fair when it claims the two are the same thing.
- Chapter 14. Bitcoin and meaning“Isn’t attaching virtues to an asset just religion with a ticker symbol? People who own gold say the same things about themselves.”
Partly, yes, and you should hold onto that suspicion. Gold owners have talked about discipline and stewardship for centuries, and some of it was self-congratulation. So is some of what you will hear from Bitcoin people. Owning an asset does not make anyone virtuous, and plenty of people who hold bitcoin gamble it, brag about it, or use it to lie to the people who trust them.
Here is the version of the claim I can stand behind. The values in this chapter are older than money. What trustworthy money does is stop punishing them. A person who wants to be patient in a currency that loses a third of its value in a decade is fighting the current. In a money with a fixed supply, the current runs the other way. That is a condition, and the virtue is still up to the person. In 25 years of classrooms, I've seen that conditions matter more than lectures, which is why this book teaches by doing rather than preaching. Take the values, test the money, and keep your suspicion.
- Chapter 15. From reader to neighbor“Isn’t ‘be the peer, not the preacher’ just a softer kind of recruiting? You are still trying to get people to buy.”
Partly, yes, and you should hold me to it. I do want more people to understand Bitcoin, and I have spent five years teaching it, so I am not neutral, and I have said so throughout.
Here is the difference. Recruiting has a target and a quota. The peer plan has neither. Its instruction to you is to do your own small thing well and answer questions when asked, and it counts as a success if your sister looks, understands, and decides no. That student’s sister could have done exactly that. Nothing in the script asks anyone to buy, and the fourth line tells them who to talk to instead of you. If a “peer” ever pushes an amount, a deadline, or a price, they have stopped being a peer, and you should apply the same rule to them that you apply to me: the pressure is the red flag.
What I will not pretend is that showing is neutral. It is not. Watching someone you trust do a thing and be fine is persuasive, and the research in this chapter says it is more persuasive than any argument. That is exactly why the rules in “What not to do” exist. The power of the peer effect is why you should use it carefully, and why this book puts the safety chapters before the buying chapter.