According to Michaël van de Poppe, his altcoin portfolio is currently down by 50-70% after seven months of being fully invested. He references his previous experience in a similar cycle where some altcoins surged by 20,000% from their lows. He emphasizes the potential long-term rewards of holding altcoins over multiple years, citing his own investment history as evidence. This perspective suggests a strategy of patience and holding through downturns, potentially appealing to traders focusing on long-term gains. [Source: Michaël van de Poppe via Twitter]