Group 1 - Ethereum Classic (ETC) has increased by 557% over the past decade, but this performance is significantly overshadowed by Ethereum (ETH), which has surged by 22,620% during the same period [1][2][7] - The performance comparison indicates that Ethereum Classic has stagnated, failing to evolve as rapidly as Ethereum, which has adapted to significant changes in the cryptocurrency market [3][4] - Ethereum Classic utilizes an outdated proof-of-work consensus mechanism, while Ethereum has transitioned to a more efficient proof-of-stake mechanism, enhancing its usability and performance [4] Group 2 - Despite its fixed coin supply of 210 million coins, which may serve as a hedge against inflation, Ethereum Classic is expected to underperform compared to Ethereum in the long term [5][7] - There are superior investment alternatives available, such as Bitcoin (BTC) and Litecoin (LTC), which have outperformed Ethereum Classic over the past decade [6][8]