#BTC $BTC
### 1. The Massive Vault of Lost Bitcoins
Research suggests that approximately **20% (over 3.7 million)** of all Bitcoins in existence are lost forever. This is often due to people forgetting their digital wallet passwords or losing the hardware where the keys were stored. This enormous amount of Bitcoin can never be recovered.
### 2. The First Real Purchase: 2 Pizzas for 10,000 BTC!
On May 22, 2010, Laszlo Hanyecz famously ordered two pizzas for 10,000 Bitcoins. This was the first-ever real-world transaction using the cryptocurrency. At today's market prices, those 10,000 Bitcoins would be worth hundreds of millions of dollars. The crypto community now celebrates this day as **"Bitcoin Pizza Day."**
### 3. The Smallest Unit: The Satoshi
Just as a dollar has cents, Bitcoin has its own smallest unit named after its creator: the **"Satoshi" (Satoshi)**. One Bitcoin can be divided into 100 million parts. Therefore, 100,000,000 Satoshis equal 1 Bitcoin.
### 4. Bitcoin Nodes in Space
To keep the network secure and independent of local internet outages, a company called Blockstream broadcasts Bitcoin data from space via satellites. This means that with a specialized receiver, it is possible to conduct Bitcoin transactions even without a traditional internet connection.
### 5. The Mysterious Satoshi Nakamoto
The true identity of Bitcoin’s creator remains a mystery. It is estimated that Nakamoto’s personal wallets hold roughly **1.1 million Bitcoins**. Interestingly, not a single Bitcoin has been moved or spent from those wallets since 2009.
### 6. Energy Consumption and the Environment
The electricity required for Bitcoin mining is immense—at times exceeding the total annual power consumption of small countries. However, many mining operations are now shifting toward renewable and eco-friendly energy sources to mitigate environmental impact.