Layer Two Blockchains (L2), What is Layer 2?

We should start with Layer Zero (0) before talking about Layer 1 and Layer Two Blockchains, but let's skip Layer Zero because understanding it can be confusing if we don't understand Layer 1 and 2, we'll come back later on layer zero Blockchains, God willing. ~ If we are to understand layer two Blockchains then we must first understand what is layer One (L1), in short Layer One or (L1) Blockchain is the Blockchain that was originally created with its structure and rules alone, that is ( consensus mechanism and its features).

The layer one Blockchain (L1) is not made to help another Blockchain directly, the layer one Blockchain is done independently, and in the process of verifying transactions and creating a new block of transaction, they can use (PoW) that is " Proof of Work" or (PoS) that is "Proof of Stake", or (DPoS) that is "Delegated Proof of Stake" in the process of determining transactions and data or let's say their "consensus mechanism".

Examples of layer one Blockchain are "Bitcoin Blockchain", "Ethereum Blockchain", and "Cardano", or "XRP" (Ripples). These are all Blockchains (Public Blockchains) that are Layer One (L1). They are working for themselves and not for the help of any Blockchain or any other movement.

~ What is Layer Two (L2)? Layer 2 Blockchains are the Blockchains that are made to help another Blockchain, layer two (L2) are made to reduce the workload of another Blockchain that has too much work for it. For example, Ethereum is the first Blockchain to create a smart contract on it, and it has a big machine that all the work done on it returns to it (Ethereum Virtual Machine) or EVM for short.

Everyone wants to work with Ethereum, everyone wants to put their smart contract on Ethereum because Ethereum is very secure and strong, and it has Decentralization, but it has a problem with the speed, it is very slow, without Scalability, every second he makes 17 or 19 transactions (TPs), when more than a million people want to deal with him. ~ Then dealing with Ethereum there is a cost, there is a charge (High Gas Fee), then these two major problems, namely the problem of maintenance (lack of speed) and the problem of cost (Expensiveness) are the main reasons for making Layer 2 Blockchains, their layer Layer two is done in order to speed up layer one and reduce the cost of layer 1. Layer two blockchains are scaling solutions that cannot be found on layer two. 1.

In other words, layer two gives importance to scalability and cost reduction, to speed up and reduce gas fees. ~ Let's give an example of Ethereum and Arbitrum, if you use Arbitrum then you use Ethereum only indirectly, because it is Arbitrum layer 2 Blockchain that was made to make it easier for people who use Ethereum who can't tolerate it The cost of Ethereum, or those who want speed, see Ethereum is watching.

The layer two Blockchains get their strength and security (Decentralization and Security) from the Blockchain that they help, while they give importance to Scalability that is the speed of that big Blockchain. Layer 2 does not touch anything related to the security or decentralization of the Blockchain that they are under. ~ If we understand layer two, we will understand that it is an extension, it is an improvement or expansion that is done to a big Blockchain that is needed, and it cannot be saved to make a new one, because it is strong and secure.

~ Examples of layer two Blockchains are "Polygon", in the list of Layer 2 Blockchains Polygon is the first, then from the list of examples of layer 2 there is "Arbitrum", there is "Metis Blockchain" by Maman Vitalik Buterin, there are such as "zkSync" , there is "Base Blockchain" of CoinBase, there is "Optimism Blockchain" and such as "Gnosis Blockchain" and others, these are all layer two, almost all of them are compatible with Ethereum Virtual Machine.

Let's take "Arbitrum" and give an example, Arbitrum layer 2 Blockchain is compatible with EVM that is "is compatible with Ethereum Virtual Machine", although Arbitrum has its own machine called "AVM", we are to make it easier for people to deal with Ethereum. ~ If you want to build something, and you want to do it on Ethereum for strength and security, it turns out that you are afraid of the cost of Ethereum, and you don't want to be slow, then you were brought a scaling solution with Arbitrum, and it was said that you will get it easier Money, you will get fast and your need to put your work on Ethereum will be confirmed, that's the work of layer two.

They layer two are like representatives of layer one, they are like Yara or the messengers of layer one, because they layer 2 do not have any instructions and restrictions except what layer 1 says, that is they follow a protocol (system) mathematical algorithms and computational power or works of layer 1, but they have the right to import new plans that do not conflict with layer one. ~ Right now we can almost say that there is no other layer two Blockchain that reaches Arbitrum's strength and size and useful features, because Arbitrum uses "Optimistic Roll up" in its work.

He takes the Ethereum transactions and edits them offline, combines the transactions that were done offline and makes them into a single Block, before later they are transferred to the Ethereum Mainnet. Arbitrum is using Arbitrum NOVA, and Arbitrum Nitro to increase the size of the blocks and distribute the data that will go to the Ethereum Mainnet so that they can be taken easily without checking all the transactions in their entirety, what is in Layer One. they call it (Sharding), even though it is not exactly Sharding.

At layer two, the system uses something called WASM, which assumes that most of the transactions are valid, so it approves them, and enters them on the Mainnet when the time is right, especially the Ethereum Mainnet.

~ Then you will realize that there is a great need for Ethereum, but if you want to use Ethereum in an easy way, you should go to Arbitrum or BASE or zkSyn and others. This shows you that only God knows the amount of money that will go through Arbitrum before the Bull Run and after the bull run, that is why we are saying to buy ARB and save it only and focus on the power of God. ~ Even now the TVL of ARB has exceeded Ten Billion US Dollars, that is "Total Locked Value" kept under ARB alone. And now there is nothing brought to bring money into ARB, that is, there is no meme coin, Arbitrum did not do their Shiba, they did not do their BONK, they did not do their COQ.

~ So, if we understand this, we will realize that Bitcoin and Ethereum are expensive, they are very slow, but they are needed because of their security, and their power, so all the Blockchain that was made to help them (layer 2) will be visible. ~ In the future we will talk about Layer Zero (L Zero), there we will talk about COSMOS (ATOM) and Polkadot (DOT).

The last example I will give about layer two is, a woman and her husband are angry, he is a leader but what is angry, whether it is the president or the governor, he is quick to anger, so if he is wanted, he should be told by the wife, sometimes then we gave her gifts because she delivered people's messages to him. ~ She used to be the middle child among the poor people who wanted to see her husband with them. You see her like you are the Governor, that is layer two.

We will stop here, in the future we will look at the Blockchain Trilemma, which is CORE and METIS, God willing. ~ From this information, you will understand that in the future, the two layers will be the ones that will be used for the business, and the game will be made with them, because the funds will pay for themselves in an effort to reach Bitcoin or Ethereum.

Well, on the Bitcoin side there is "Bitcoin Lightening" which is also a layer two system for Bitcoin, then Ethereum has "ETH Plasma" we will follow them in the future, God willing. ~ If we understand these things, then we will not enter the Bull Run with a dark head, we will know where to invest money, where to do real business, and where the world will turn. God made us fit....