The 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 in altcoins instead of Bitcoin. When Bitcoin's market influence decreases and the prices of altcoins start to rise, it is referred to as alt season. During this time, more people trade these cryptocurrencies, leading to further increases in their prices. In the past, when Bitcoin went up, shortly after, altcoins also saw significant gains. Similar signs are appearing now, which is why many investors believe that a good time for altcoins may come soon.