Bitcoin is digital money without banks. Created in 2009, it operates on a network called *blockchain* that records all transactions. There will only be **21 million BTC** (more than 19 million are already in circulation).
- **Price today:** ~$104,668 (it fluctuates a lot).
- **Predictions 2025:** It could reach $130,000 or more.
**How to use it?**
1. **Buy it** on apps like eToro or Binance.
2. **Store it** in a digital wallet (physical ones are safer).
**Risks:**
- It is volatile (it can lose or gain value quickly).
- If you lose your password, you lose your BTC.
**Is it useful for payments?** Yes, but few stores accept it yet.