Is the unique situation of Bitcoin about to change? Since last weekend, several established public chains, meme coins, and metaverse concept coins have seen significant surges, drawing close attention from investors. (Background: Bitcoin's market share 'soars to 61.6%', hitting a near four-year high. Is there still hope for altcoin season?) (Additional context: With Bitcoin aiming for $100,000, when will the BTC ecosystem explode?) As Bitcoin aims for $100,000, investors are closely watching whether the long-awaited altcoin season is approaching. In this context, since last weekend, several established public chains, meme coins, and metaverse concept coins have surged significantly, attracting investors' keen interest. The chart below shows the performance of the top 100 tokens over the last 24 hours, where SAND (which surged over 100% in the past two days) and MANA, two established metaverse concept coins, have seen astonishing increases recently. Performance of various sectors over the past week According to Artemis data, over the past seven days in the blockchain sector: The average increase of 36.4% was seen in Data Availability (Celestia, Dymension, although there are fewer tokens in this category). The second place is Gaming at 25.4% (SAND, AXS, MANA…) The third place is established public chains at 22.1% (ADA, VeChain, IOTA…) What indicators can determine the arrival of altcoin season? Although Bitcoin saw a slight pullback last night, the trends of the aforementioned strong coins still appear robust, but how can we determine if the altcoin season is coming? Or is it just the main force harvesting short positions? We may observe the changes in BTC.D (Bitcoin market share). When the altcoin season arrives, the price increase of Bitcoin will gradually be surpassed by other coins, leading BTC.D to fall from high levels. Especially when BTC.D starts to drop sharply from its peak, it usually means that market funds are flowing into altcoins, which is an important signal for the start of the altcoin season. Historically, when BTC.D drops below 50% and further declines to the 40% level, this period may be the best time to capture the explosive growth of altcoins. Currently, BTC.D has decreased from above 60% to its current 59.37%, but there is still a significant distance from 50%, and this year it has not dropped below 50% at all. However, there are several positive factors for Bitcoin this year; will the indicators for the arrival of the altcoin season change? Time will tell. Reminder to investors: The volatility of altcoins is generally large, so users should be cautious of risks. Related reports: How did MicroStrategy succeed? Bloomberg: Bitcoin holdings exceed those of IBM, Nike, and other asset reserves, with stock prices rising 20-fold in five years. Bitcoin surged 10% to 'break through $89,000' new high! MicroStrategy added 27,000 BTC, stock prices skyrocketed. Bitcoin broke through $79,700, 'knocking on the door of $80,000'! MicroStrategy's BTC profit exceeded $10 billion. "SAND surges 100% in two days, established public chains collectively awaken, is the altcoin season signal light on?" This article was first published on BlockTempo (the most influential blockchain news media).