docs: rewreite Proof of Stake intro

docs/pages/introduction.md

@@ -4,9 +4,7 @@ Ethereum is one of the most profoundly important inventions in recent history. I
 
 ## Proof of Stake
 
-Proof-of-Stake (PoS) is a type of consensus mechanism utilized by blockchain networks to achieve agreement among various nodes on the validity of transactions. Unlike its predecessor, Proof-of-Work (PoW), which requires nodes to perform complex mathematical calculations, PoS relies on the amount of cryptocurrency a node holds as a stake. The more stake a node holds, the higher its chances of being chosen to validate a new block of transactions on the blockchain. This system encourages honesty among participants, as any fraudulent activity could lead to the loss of their staked coins, providing a form of security for the network.
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-PoS is often lauded for its energy efficiency compared to PoW. Since it doesn't require extensive computational power, it significantly reduces the energy consumption, making it a more eco-friendly alternative. Moreover, PoS tends to facilitate faster transaction validations and block creations, enhancing the overall performance and scalability of the network. Over time, several variations of PoS have emerged, including Delegated Proof of Stake (DPoS) and Leased Proof Of Stake (LPoS), each with its unique features and benefits aimed at improving blockchain network functionality and governance. Through these advancements, PoS continues to evolve, fostering a more sustainable and efficient environment for decentralized applications and systems.
+In Ethereum's Proof of Stake (PoS) model, validators replace miners from the Proof of Work (PoW) system. Validators are Ethereum stakeholders who lock up a portion of their Ether as a stake. The protocol randomly selects these validators to propose new blocks. The chance of being chosen is tied to the size of their stake: the more Ether staked, the higher the probability of being selected to propose the block. Proposers receive transaction fees and block rewards as incentives. Validators are also responsible for voting on the validity of blocks proposed by other validators. However, they face penalties, known as slashing, for actions like double-signing, votes on a block that is not in the majority or going offline, ensuring network integrity and reliability. The PoS mechanism significantly reduces energy consumption compared to PoW, because it does not require extensive computational power. Moreover, PoS tends to facilitate faster transaction validations and block creations, enhancing the overall performance and scalability of the network.
 
 ## Consensus Clients