Four Iron Rules of Bitcoin, with no exceptions so far:
1. Halving occurs once every four years
2. A bull market starts six months after halving
3. A bull market ends one and a half years after halving, followed by a sharp decline - the best time to sell at the top
4. The decline lasts for one year until it hits the bottom, with an 80% drop - the best time to buy at the bottom #比特币 #区块链