The energy debate

In plain words

Mining consumes electricity on the scale of a mid-sized country — by design. The cost is the shield: rewriting Bitcoin's history must never be affordable. Critics call it waste and point to emissions. Supporters answer: miners hunt the cheapest power on earth, often surplus or renewable; they can shut off in an instant to help a grid; and neutral money is worth a power bill. The numbers are mostly agreed. The fight is over values — what deserves energy.

Why it matters

• The most common outside criticism of Bitcoin — understand it first-hand.
• The energy IS the security. Money cheap to attack would be weak money.
• Miners run anywhere and stop instantly — rare traits that shape where mining lives.

Go deeper

• Proof of work
• Hashrate
• ASIC miners