Bitcoin (BTC-USD) has been the subject of intense speculation and volatility in recent times. In the midst of these dynamics, bullish Bitcoin price predictions prevail. In fact, some of them reach the $1 million mark. One of the reasons for that is the much-anticipated halving event. Other key catalysts include the recent collapse of U.S. banks, inflation, and amplified demand for alternative financial systems. That being said, market analysts have become far more optimistic on the future of Bitcoin, including: BitcoinBTC For example, suppose the selfish miner produced four blocks but kept them private. Meanwhile, the honest miner only produced three blocks on the public chain. Now, the selfish miner decides to publish their blocks. Since the blockchain always favors the longest chain, the blocks produced by the honest miner are rendered invalid.