$BTC

1. Lost Forever Treasure

Over 3–4 million BTC (worth tens of billions today) are estimated to be permanently lost—coins locked in wallets whose private keys have been forgotten or thrown away. That means up to 20% of all Bitcoin will never move again!

2. The 1-MB Block Limit Was Controversial

Bitcoin’s original creator, Satoshi Nakamoto, hard-coded a 1 MB block size limit to prevent spam. This “anti-spam” measure nearly broke the network’s scalability debates for years…and still fuels forks like Bitcoin Cash.

3. The Pizza That Cost $500 Million

On May 22, 2010, Laszlo Hanyecz famously paid 10,000 BTC for two pizzas. At today’s prices, that’s roughly $500 million for two pies—making it the most expensive pizza order in history.

4. Mysterious Early Whales

One single address, known as the “Satoshi wallet,” holds nearly 1 million BTC and has never moved. Nobody knows who controls it—or if it’s even a person at all.

5. Quantum-Resistant Bitcoin?

Researchers are exploring ways Bitcoin could survive a future quantum-computer attack. Proposals include upgrading its cryptography to “quantum-resistant” algorithms—a bizarre twist for a 2009 network.

6. Glacier Cold… in Space?

A company once proposed sending a hardware wallet into orbit to keep funds so cold-storage that no hacker on Earth could ever reach them. Space-age security for your sats!

7. “Paper Bitcoin” Museum

There’s a physical art installation in Europe featuring giant “paper Bitcoins”—20 kg sheets engraved to look like giant coins—celebrating crypto’s cultural impact.