According to Adrian (@adriannewman21), a clear sign of a crypto bull market is when not only major assets like Bitcoin but also a wide range of memecoins and lesser-known tokens on networks such as Solana (SOL) and Ethereum (ETH) experience significant price surges. This broad-based market rally, where even low-cap and obscure tokens pump, signals heightened trading activity, increased liquidity, and strong bullish sentiment across the cryptocurrency sector. Traders should monitor the activity and volume in altcoins and memecoins as indicators of market exuberance and potential volatility (Source: Twitter/@adriannewman21, May 11, 2025).