# 8.4《Modular Blockchains: A Deep Dive》

By [Mia](https://paragraph.com/@mia-3) · 2022-08-04

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Original Text 🔗 [https://volt.capital/blog/modular-blockchains](https://volt.capital/blog/modular-blockchains)

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Problems such as low throughput and high fees annoy people when it comes to transactions. To solve the problem, blockchains often have to compromise one aspect of decentralization, security or scalability in order to provide strong guarantees for the other two. The authors of this article believe that modular blockchains will be an essential direction for the future, after all, to avoid "sacrificing" one aspect of the problem for the sake of compromise.

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⭐️⭐️⭐️

Blockchains currently face a problem called the “ [Blockchain Scalability Trilemma](https://medium.com/certik/the-blockchain-trilemma-decentralized-scalable-and-secure-e9d8c41a87b3) ”

Scalability refers to a blockchain’s throughput divided by its cost to verify. Through a modular execution and data availability layer, blockchains are able to scale throughput

How to scale throughput while minimizing trust: allow computation to become centralized while keeping validation of that computation decentralized.

The data availability problem is solved by using corrective codes, allowing light nodes to determine the entire block content that has been published with probability by randomly sampling small portions

Rollup architecture has also led to the unique insight that blockchains do not need to provide execution or computation itself, but rather simply the function of ordering blocks and guaranteeing the data availability of those blocks

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✍tips

Blockchain scaling is a key issue, and if it can increase throughput while ensuring security and decentralization, then it can be better applied.

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*Originally published on [Mia](https://paragraph.com/@mia-3/8-4-modular-blockchains-a-deep-dive)*