Downsides of Proof-of-Work and Proof-of-Stake, explained

Proof-of-Work and Proof-of-Stake are arguably the best-known consensus mechanisms — but new ones are continually emerging. PoW blockchains have long dominated the cryptocurrency landscape, with both Bitcoin and Ethereum using this model. This means miners are responsible for securing the network and validating transactions — and they get rewarded with new coins as a result. […]