<ul><li>- Proof-of-Stake has negative impact on the environment, is expensive to be a miner, and has scalability issues.</li><li>- Proof-of-Stake does not have miners, but instead validators are chosen in a pseudo-random way.</li><li>- Validators put their cryptocurrency on stake and are rewarded based on their stake.</li><li>- Factors affecting validator selection include stake amount, length of staking, and randomization.</li><li>- Higher stake amounts increase the chances of being selected, which some argue may lead to centralization.</li></ul>

What is Proof-Of-Stake?

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