According to Michaël van de Poppe (@CryptoMichNL), the altcoin market has just endured its longest bear market in history, lasting 4 years as of June 2025. This extended downturn has led to significant portfolio losses and forced many traders out of the market, affecting liquidity and trading volumes across major exchanges (source: @CryptoMichNL, June 7, 2025). For active traders, this historic low may signal an impending market cycle shift, presenting potential long-term accumulation opportunities in oversold altcoins. However, caution remains vital as market sentiment and macroeconomic factors continue to pressure altcoin valuations.