Genfinity Discusses the Blockchain Trilemma

How do blockchains work?

Are we seeing the effects of the blockchain trilemma already in 2024? Welcome to Genfinity where we will discuss the ongoing blockchain trilemma and what it could mean for you as you research the best blockchains for your assets. 

Blockchains are a network of participating nodes. Each node in the network maintains a copy of the blockchain’s ledger and participates in the process of validating and adding new transactions to the ledger through a consensus mechanism. This distributed network of nodes collectively maintains the integrity and security of the blockchain by achieving consensus on the state of the ledger through cryptographic techniques and agreed-upon rules.

You can essentially think of a blockchain as a network acting in a decentralized manner. What this means to you is that the network acts freely with no governing authority. A successful blockchain has the elements of security, decentralization, and scalability. 

What is the blockchain trilemma?

A blockchain’s biggest task is to remain secure and freely governed while simultaneously being scalable. Scalability refers to a blockchain’s ability to handle an increasing number of transactions or users without compromising its performance — its speed and efficiency.

When a blockchain cannot keep one of these three critical elements working seamlessly, the network could become undesirable. The blockchain trilemma proposes that these three elements — security, decentralization and scalability — are issues that developers will always encounter when building blockchains. The theory is that the creators will have to sacrifice one aspect to strengthen the other two aspects. Some Web3 experts believe that decentralized networks will only provide two out of three benefits at once. 

What are the most important elements of a blockchain?

• Consensus Mechanisms: These are protocols that ensure all participants agree on the validity of transactions. Popular mechanisms include Proof of Work (PoW), Proof of Stake (PoS), and more. 
• Decentralization: By distributing control across multiple nodes or participants, a blockchain becomes less susceptible to single points of failure or manipulation. Decentralization enhances security and resilience.
• Scalability Solutions: As blockchain networks grow, scalability becomes crucial for maintaining stability. Various solutions, such as sharding, layer-2 protocols, and off-chain scaling solutions address scalability challenges without compromising security or decentralization. In blockchain systems, scalability directly influences throughput. A blockchain network that scales effectively can support a higher throughput by processing more transactions concurrently or in a shorter time period.
• Immutability: Once data is recorded on a blockchain, it becomes extremely difficult to alter or delete. This feature is achieved through cryptographic hashing and consensus mechanisms, ensuring the integrity of the ledger.
• Incentive Structures: Blockchains often employ incentive mechanisms to encourage participation and honesty among participants. For example, miners in PoW blockchains are rewarded for validating transactions and securing the network.
• Transparent Governance: Clear rules and transparent governance mechanisms ensure that decisions regarding protocol upgrades or changes are made openly and with consideration for the network’s best interests.
• Security Measures: Robust cryptographic techniques, regular audits, and bug bounty programs contribute to the overall security of a blockchain, protecting it from attacks and vulnerabilities.
• Interoperability: The ability of a blockchain to interact with other blockchains or traditional systems enhances its utility and resilience, fostering broader adoption and use cases.

How is the blockchain trilemma related to its structural elements?

The blockchain trilemma can affect the elements of a blockchain in a few ways. When a blockchain tries to achieve decentralization, it can come at the cost of scalability. Maintaining a consensus among a large number of decentralized nodes can bring latency and reduce transaction throughput. 

The choice of consensus mechanism can impact scalability. Some mechanisms, like PoW, may have inherent scalability limitations due to their resource-intensive nature. Conversely, others mechanisms like Delegated Proof of Stake (DPoS), may prioritize scalability by allowing for faster transaction processing.

TVL and ADU — What do they mean for a blockchain?

What is Total Value Locked (TVL)?

Total value locked (TVL) serves as a measure within the cryptocurrency sector. TVL quantifies the total U.S. dollar value of digital assets that are locked or staked on a specific blockchain network. This may be an important metric to check out as you invest because a higher TVL on a blockchain signals that more people trust the blockchain to securely stake their assets. 

This sentiment also rings true in the banking industry. Would you rather invest with a bank that had quite a few deposits and a good reputation, or with a new, unknown institution? 

Ethereum currently ranks first for the most TVL with over $64B of value. Tron, BNB chain, and Solana come in after Ethereum, with $7B, $4B, and $3B, respectively. 

TVL is only one snapshot of a blockchain’s health. It doesn’t show another important metric — user activity levels. 

What is DAU?

Daily active users, or DAU, is also a critical metric of a blockchain. DAU shows the quantity of unique addresses engaging with a dApp’s smart contract. If a blockchain is the “bodily skeleton” of the network, the dApps, or decentralized applications, are the nervous systems and tissues that layer over the network.

Looking at a blockchain’s DAU before engaging with them is important. If you were to see a high TVL but a low number of users, for example, you could rightfully assume that a small pool of investors account for a large total of the value. This could be a red flag. 

Tron and BNB chain are the highest ranked for DAU as of the recent data.

What does the blockchain trilemma mean for you?

The blockchain trilemma significantly influences your choice in selecting a blockchain to use. You may weigh the trade-offs between decentralization, security, and scalability based on their specific requirements and priorities.

For instance, if you are seeking maximum decentralization, you may prioritize blockchains employing consensus mechanisms like Proof of Work (PoW) or Proof of Stake (PoS). You may select these options despite potential scalability limitations. 

Conversely, if you are prioritizing scalability, you might opt for blockchains implementing solutions like sharding or layer 2 protocols, even if it means sacrificing some decentralization.

Security measures, incentive structures, TVL, DAU, and transparent governance may also play crucial roles in your decision-making processes. Ultimately, you can carefully evaluate these factors to align with your individual needs and preferences when choosing a blockchain.

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