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Dude is a climate activist. I think other things preclude him from cryptocurrency.

Cryptocurrency != bitcoin. Plenty of cryptocurrencies that don't rely on PoW

which?

Solana, Polkadot, Cosmos Hub, Ethereum Beacon chain, Binance Smart Chain, Cardano, Polygon, Avalanche, Cronos, NEAR, Algorand, Tezos, Osmosis, Juno, ...

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