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Blockchain's biggest benefit is disturbed verification, so trust the community and not one authority. Right?

Yet the cost is distributed externalities like burning nonrenewables or wasting greener energy sources on inefficient or pointless calculations.

Are there any smart contracts or DeFi without the externalities problem?

And even if there are then is it wise to put money into things one doesn't understand? The DAO exploit makes me wonder if the juice is really worth the squeeze.



There are multiple Proof-of-Stake networks already running successful DeFi projects.

Harmony One, Polygon, Fantom to name a few (Polkadot/Substrate is growing quickly, too). ETH2 is obviously going to be the big one, though.


DeFi will be moving off of proof-of-work later this year along with the rest of Ethereum and that will cut electricity use by ~99.9%


I sure hope so. But of course everyone invested in Bitcoin, dogecoin, and the others have a vested interest in that never becoming the thing to do. The ones with the mining factories are going to try to prevent this, since it's their competitive advantage.

But even if that happens (and it would be great), there's still everything else: https://news.ycombinator.com/item?id=27345786




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