According to Michaël van de Poppe, BTC and ETH may face a short-term 1-2 week correction, and he advises traders to stay flexible with liquidity on the sidelines to buy the dip, source: @CryptoMichNL on X, Sep 21, 2025. He adds that markets could resume higher after the pullback, implying dip-buying opportunities in BTC and ETH, source: @CryptoMichNL on X, Sep 21, 2025.