Altcoin season is the time when other cryptocurrencies like Ethereum, Solana, and others start to grow faster compared to Bitcoin. This means that people begin to invest money in altcoins instead of Bitcoin. When Bitcoin's market influence decreases and altcoin prices start to rise, it is referred to as alt season. During this time, more people buy and sell these cryptocurrencies, leading to further increases in their prices. In the past, when Bitcoin went up, altcoins also saw significant gains shortly after. There are similar signs appearing now, so many investors believe that a good time for altcoins might come soon. But remember, the crypto market is volatile, so it is important to make decisions wisely.