I noticed that in my experience, if the altcoins season starts, every altcoin that is a pioneer has started to rise, for example:
1. Coin Wallet = Safepal, Trustwallet starts to rise
2. Coin DEX = UniSwap, BakerySwap, 1inch starts to rise
3. ETH L2 = Arbitrum, Optimism, Aptos starts to rise
4. Fan Token = AC Milan, AS Roma, Porto, OG, Barca, Juventus starts to rise
5. etc.
In my opinion, if all four types of coins start to rise, then it can be said that it is altcoins season. But the proof is that now the four types of coins have not shown any signs of their prices going up. Maybe we should be more patient this time.