Bitcoin's market share once rose to 64.67%, but now fell back to 64.30%

On April 23rd, data, the Bitcoin dominance (BTC.D) briefly rose to 64.67% this morning, reaching a new high since February 2021, and is currently back at 64.30%. The high Bitcoin dominance indicates the quietness of the altcoin market, but it may also suggest that a bottom reversal is imminent. Based on historical data, when Bitcoin dominance surged above 60% in November last year, altcoins started a small bull market. In 2019 and 2021, Bitcoin dominance reached highs above 70%, followed by a broad and spectacular uptrend.