Clear signs that altcoin season 3.0 is about to begin include:

- *Bitcoin's dominance ratio weakening*: Bitcoin's dominance ratio has fallen below 65%, indicating Bitcoin's weakening and creating opportunities for altcoins to grow ¹.

- *Technical signs indicating Bitcoin's dominance is collapsing*: Technical indicators such as RSI, MACD, and histogram all indicate Bitcoin's weakening and create opportunities for altcoins to grow ².

- *Growth of altcoins*: Altcoins like Ethereum (ETH), XRP, and Solana (SOL) have shown strong growth recently, indicating investor interest in altcoins ¹.

- *Launch of new products*: The launch of new products such as spot ETFs for altcoins and new DeFi platforms may generate interest and growth for altcoins ².

- *Change in market sentiment*: A shift in market sentiment from bear to bull can create interest and growth for altcoins ¹.

In summary, altcoin season 3.0 may be about to begin with Bitcoin's weakening, the growth of altcoins, the launch of new products, and a change in market sentiment.