According to Michaël van de Poppe (@CryptoMichNL), Bitcoin has rallied 9% following a key breakout, signaling renewed bullish momentum in the crypto market. This upward movement has triggered increased strength among altcoins, indicating a potential shift in capital flows and positive sentiment for traders. Van de Poppe highlights the critical importance of Bitcoin holding above the $90,000 level to sustain its upward rally, which traders should monitor closely for potential breakout continuation or retracement opportunities (source: Twitter, 28 April 2025).