Is anyone still using PoW in 2025? When I first saw Irys announce they would use PoW, my first reaction was: Are they serious? In 2025, Ethereum has long completed The Merge, Solana and Sui have been PoS from the start, and even the Bitcoin community is discussing whether to consider some form of proof of stake. In this era where PoS has become the industry consensus, Irys actually wants to use PoW? My first reaction was: Is this team out of their minds? But as I delved deeper, I realized: I was wrong, and wrong in a big way. Irys's choice is not retro, not stubborn, but a profound understanding of the essence of the problem. Why do we feel that PoW is "outdated"? Let me first explain why everyone thinks PoW is outdated. Over the years, PoW has been criticized mainly for several points: High energy consumption. Bitcoin's electricity consumption exceeds that of many countries, which is indeed a big problem in today's world where environmental awareness is growing. Poor...
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