Bitcoin questions, answered straight

Bitcoin is a fixed-supply digital money that no company or government runs. Roughly every ten minutes, a global network of machines competes to add the next block of transactions to a shared public ledger, and the winner earns newly issued coins. Only 21 million will ever exist, and the rules are enforced by software that thousands of independent nodes run voluntarily.

An amount you'd be genuinely fine losing. Bitcoin routinely falls 30% or more, so the practical starting point is a small position you won't be tempted to panic-sell — often bought gradually with dollar-cost averaging rather than all at once. Nobody here will tell you a percentage; that depends on your finances, not on bitcoin.

Yes. Each bitcoin divides into 100 million satoshis, and every exchange sells fractions. A $20 purchase is completely normal — you receive a fraction of a coin, not a rejected order.

A regulated exchange with a real compliance record, funded by bank transfer rather than credit card, with two-factor authentication on from day one. Withdraw to a wallet you control once your balance is large enough to matter to you.

For US buyers, River and Kraken are consistently cheaper than Coinbase's simple-buy interface, which can run several percent. The fee that matters is the total spread you pay, not the headline commission — a low commission on a wide spread isn't cheap.

Coinbase is easier for a first purchase and has deeper US regulatory footing; Kraken is cheaper once you use its pro order book and has stronger proof-of-reserves practice. Most people start on Coinbase and migrate when fees start to sting.

For small amounts and active trading, it's a reasonable convenience. For meaningful savings, no — an exchange balance is a claim on a company, and companies fail, freeze accounts, and get hacked. "Not your keys, not your coins" exists because that has happened repeatedly.

A wallet doesn't store coins — the ledger does. It stores the private keys that prove you control certain coins, and lets you sign transactions with them. Losing the app is recoverable; losing the keys and their backup is not.

The 12 or 24 words your wallet generates at setup. Those words mathematically regenerate every key in the wallet — so anyone holding them owns your bitcoin, and you can restore your wallet on any device with them. Write them on paper, store them offline, never type them into a website.

Once your holdings are worth more than the device, yes. A hardware wallet keeps your keys on a chip that never touches the internet, so a compromised computer can't spend your coins. Below that threshold, a well-backed-up mobile wallet is a defensible choice.

Coldcard Mk4 for bitcoin-only, air-gapped storage; Trezor Safe 5 for fully open-source firmware with a friendlier interface; Ledger Flex for the widest asset support and slickest app. All three are competent — the differences are philosophy, not safety.

Nothing — unless someone can find and use your keys, which is exactly the problem. Self-custody requires an inheritance plan: a documented location for the seed backup, or a multisig setup where a service holds a key your heirs can invoke.

For six-figure holdings, usually yes. Multisig requires two or three keys to move funds, so a single stolen device, house fire, or coerced signature can't drain you. The cost is real operational overhead — which is why collaborative-custody services exist.

It's a good way to own bitcoin exposure inside a brokerage or retirement account, with no keys to manage. You don't own bitcoin you can withdraw, spend, or verify — you own shares in a fund that holds it. Fine for retirement allocation; wrong for self-sovereign savings.

Fee schedules have converged around 0.19%–0.25%, with IBIT and FBTC anchoring the low end. At that level the deciding factor is liquidity — tighter spreads and deeper options markets save more than a basis point of expense ratio.

IBIT has the deepest liquidity and by far the most active options market, which matters if you trade size. FBTC self-custodies its bitcoin through Fidelity rather than using Coinbase as sole custodian, which some investors prefer on counterparty grounds.

Two ways: a spot ETF inside an ordinary brokerage IRA, or a specialist crypto IRA that holds actual bitcoin. The ETF route is cheaper and simpler; the specialist route lets you hold real coins, sometimes with keys you partly control.

Only if you specifically want real bitcoin in a tax-advantaged account. Specialist providers charge setup, custody, and trading fees that a $10 ETF trade avoids. iTrustCapital's flat-fee model is the cheapest common option; full-service custodians cost substantially more.

As property. Buying isn't taxable; selling, swapping, or spending is, and you owe capital gains on the difference from your cost basis. Hold longer than a year and the lower long-term rate applies. Moving coins between your own wallets is not a taxable event.

No. Unrealized gains aren't taxed in the US. You create a taxable event when you dispose of bitcoin — sell it, trade it for another asset, or buy something with it.

A global guessing contest. Machines burn electricity making trillions of guesses per second to find a number that validates the next block; the winner collects newly issued bitcoin plus fees. That cost is what makes rewriting history economically impossible.

Rarely, on electricity alone. Industrial miners pay two to four cents per kilowatt-hour; typical US residential rates are five times that. Home mining today is mostly a hobby, a heating project, or a lottery ticket — units like the Bitaxe Gamma are bought for the learning, not the yield.

The running count of blocks added since the genesis block on January 3, 2009. It's bitcoin's native clock — halvings, difficulty resets, and the final satoshi are all scheduled by height rather than date, because block count can't be spoofed.

Every 210,000 blocks the reward paid to miners is cut in half, permanently tightening new supply. The reward is 3.125 BTC today; the fifth halving cuts it to 1.5625 BTC at block 1,050,000, expected around 2028.

To keep blocks arriving roughly every ten minutes no matter how much mining power joins or leaves. Every 2,016 blocks the network measures how fast the last batch arrived and retunes the puzzle's hardness. It's the mechanism that makes issuance predictable.

Not at the levels seen so far. Security depends on the cost of out-mining the honest network, and at hundreds of exahashes that cost stays prohibitive. A sustained multi-year decline would matter; a plateau after six years of growth mostly signals a margin squeeze.

A payment layer built on top of bitcoin. Two parties open a channel with an on-chain transaction, settle unlimited instant payments off-chain, then close back to the main chain. It makes small, fast payments practical.

No. Ordinary on-chain transactions work fine for saving and larger transfers. Lightning matters when you want to pay small amounts quickly and cheaply, which is why merchant and tipping apps lean on it.

They measure net creations and redemptions of ETF shares, which force the funds to buy or sell real bitcoin. Sustained inflows are real demand hitting real supply; a single day is noise. Flows are the cleanest public read on institutional appetite we've ever had.

Bitcoin's share of total crypto market value. Rising dominance usually means capital is consolidating into bitcoin and away from speculative altcoins; falling means the opposite. Different sites report different numbers because they include different assets.

A whale holds enough bitcoin — usually 1,000 coins or more — to move markets by transacting. A dormant wallet waking up is worth noticing, but movement isn't selling: whales consolidate, upgrade custody, and rotate addresses far more often than they exit.

Because in an acute risk event, bitcoin still trades as a high-beta risk asset, not a haven. Capital runs to gold and dollars first and sells whatever is liquid and volatile. The long-term store-of-value argument and the short-term crisis trade are two different claims.

No. A Ponzi pays earlier participants with later participants' money and needs an operator who eventually stops paying. Bitcoin has no operator, no promised return, and a public ledger anyone can audit — it has produced a block roughly every ten minutes for over seventeen years, through every crash and ban.

Miners keep working, paid entirely by transaction fees instead of new issuance. The transition is gradual and largely already underway in economic terms: the final coins arrive near block 6,930,000, around 2140, and each halving shifts more miner revenue toward fees.

The protocol has never been successfully attacked. What gets hacked is everything around it — exchanges, custodians, phones, and people. Essentially every headline bitcoin theft was a compromise of a company or a user's keys, not of the network.

They can ban access to it — exchanges, banking rails, mining. China did in 2021, and hashrate relocated within months. Banning the network itself would mean stopping ordinary software from running on ordinary hardware worldwide, which no government has managed.

A US bill that would split oversight of digital assets between the SEC and CFTC and define when a token is a security. Bitcoin is already treated as a commodity, so the bill matters less for bitcoin itself than for the exchanges and custodians serving bitcoin holders.

Because durability differs. Agency rulemaking can be undone by the next administration; statute is much harder to reverse. The same policy delivered by Congress is worth more to long-term planning than the same policy delivered by an SEC rule.

A public company that deliberately holds bitcoin as its primary reserve asset, usually funded by issuing equity or debt. Strategy pioneered it. Shareholders get leveraged bitcoin exposure through a stock — plus the financing risk that leverage brings.

Accounting rules require marking bitcoin to fair value each quarter, so a price decline creates a reported impairment loss even when nothing was sold. It's a paper entry that hits earnings, not a cash loss — and it reverses if the price recovers.

Useful and imperfect. A contract at $0.62 implies a 62% chance because traders with money on the line set it, which historically beats pundit consensus. Thin markets, unclear resolution wording, and hype can distort the price.

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