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RE: Steemit Crypto Academy Contest / S5W2 - Get to know the Steem Blockchain
consensus by solving matrix calculation, this consumes a lot of energy and resources before a new block is validated, and its mostly for high-end computers and it is not easy to manage as well.
That's very true about PoW, this is the reason mining stations in some parts of the world has been closed down because of the emission from the places which is not eco-friendly. But for DPoS, it consumes less energy and save up resources.