The altcoin season has arrived, Bitcoin's dominance is weakening, the supply of stablecoins is increasing, and the environment for altcoins has formed. Indicators show that it is suitable for altcoins to rise, with the altcoin season index increasing; above 70 may be the time to take profits. In summary, market funds are flowing from Bitcoin to altcoins, with Ethereum leading the way, indicating an expansion of the bull market.