Key Takeaways
- Layer 1 blockchain connotes the base layer of a blockchain skeleton.
- Instances of Layer 1 blockchains include BNB Chain, Bitcoin and Ethereum.
- Layer 2 is a much faster route to enhance scalability.
The more attention both crypto and blockchain gets, the more growth has shown in users, enthusiasts, investors, and even transactions. But as impressive as blockchain can be, its capacity to evolve while taking in heightening demand has always been a hurdle. This problem is otherwise known as scalability.
On a brighter note, solutions to tackle this problem are being devised daily. While some of these solutions get crafted to alter the structure of the vital blockchain or Layer 1, others focus on Layer 2. This article is here to help you understand blockchains, their differences, and their scalability solutions.
What is a blockchain Layer 1 and Layer 2?
Layer 1 blockchain connotes the base layer of a blockchain skeleton. It's simply the critical structure of a blockchain network. Instances of Layer 1 blockchains include BNB Chain, Bitcoin, and Ethereum. Layer 2 blockchain, on the other hand, translates to networks created on top of other blockchains. Examples of this include state channels, Ethereum Plasma, and Lightning Network.
For instance, Ethereum is a Layer 1; an example of Layer 2 will be the Polygon that functions atop it. Regarding scalability in blockchain networks, advancements are grouped into Layer 1 and 2 solutions. In the case of Layer 1 scaling solutions, they directly alter the regulations and mechanisms of the original blockchain. Layer 2 solutions, on the other hand, utilizes an outside, parallel network to foster transactions away from the keychain.
Why is Blockchain scalability so important?
Imagine having to move from your place to your workplace, but the road you pass is filled chiefly with traffic jams. And according to many people like you using that road, it's often due to how narrow it is and more people passing there daily.The solution is to improve the route by adding more lanes on both sides. This could be costly and cause more problems for previous commuters. Creative ideas that wouldn't cause much trouble.
It could range from building more service roads to creating an overhead bridge for pedestrians to pass quickly.Now, back to the world of blockchain technology, imagine Layer 1, which is the critical network as the route. The solutions to improve it, such as an overhead bridge, would be Layer 2 solutions. These are otherwise known as the secondary network to better the total capacity.
As we indicated above, Layer 1 blockchains have instances in Bitcoin and Ethereum. These blockchains form the base layer, paving the way for processed transactions and their recording. These ecosystems also include a native cryptocurrency that functions as a payment and utility means. An excellent example of this is Polygon, which is a Layer 2 scaling solution for Ethereum. Its network sends signals to the Ethereum mainnet regularly about its status update.
The throughput capability of a blockchain is one of its essential elements. It weighs transaction speed and the rate at which it can work on many while recording them within a given time. The more the users increase, the higher the number of simultaneous transactions gets. Because of this, Layer 1 blockchains, especially Proof of Work ones, can get slow and costly to utilize. This requires developing a consensus mechanism to ease processes such as validating transaction data.
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Layer 1 scaling limitations
From sharding to adjustments in block size, solutions for Layer 1 have dynamic merits and disadvantages. They can pave the way for the most efficient solutions for large-scale protocol enhancements. But that also connotes that you must persuade validators to embrace any alterations via a hard fork.
A familiar instance where validators may not yield is moving from Proof of Work to Proof of Stake. This development will lead to miners losing their income to a better and more effective system, preventing them from improving scalability.
Layer 2 scaling limitations
In the case of Layer 2, a much faster route is provided to enhance scalability. However, there's a contingency involved. Be it nested blockchains or sidechains, depending on the mechanism used; you can miss out on many of the safety offered by the original blockchain.
Several users trust networks like Bitcoin and Ethereum for their resilience, strength, and safety history. In most cases, by removing some portions off Layer 1, you often have to depend on the Layer 2 team and network for safety and effectiveness. Smart contracts also help here.
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What does the future hold for these scaling solutions?
With every action that happens in the present comes thoughts of its continuity in the future. For Layer 1 and Layer 2 scaling solutions, it's natural to ask what the future holds for them. One central question is how helpful Layer 2 solutions will be in the future as the ones for Layer 1 become more scalable.
It's no news that existing blockchains are witnessing enhancements, and most of the networks now have great scalability. However, one should also note how long it will take for key systems to boost their scalability and how it's not guaranteed. The option that comes close here is for Layer 1 solutions to focus more on safety and give Layer 2 networks room to adjust their services to certain places.
There are good possibilities that soon, large chains like Ethereum will still take over because of their vast user base and their large developer community. And while this sounds promising, its broad, decentralized, and secure validator set and honest reputation lay a grounded base for directed Layer 2 solutions.
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Wrap up
While the discussion above seems very attractive, several Layer 2 solutions are still being experimented with. We hope for a positive result. Usually, we want fast results, but Layer 2 solutions are here for that. It's also important to note this solution isn't a total remedy for the blockchain trilemma - decentralization, security, and scalability. Added channels mean the need for more parent chains, which ends mostly at centralization. This disputes everything blockchain stands for. We hope for better innovations to come.
