What are the downsides of ZK rollups?

One of the primary disadvantages of ZK rollups lies in their technological complexity. The ZK-rollup technology, being a relatively new and sophisticated concept, poses a steep learning curve for both developers and users alike. This complexity can hinder widespread adoption and integration into existing financial systems.

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Another drawback is the computational intensity required for zero-knowledge proof generation. The process of creating these proofs is resource-intensive, consuming significant processing power. This can become a challenge, particularly for validators and operators who need to handle large volumes of transactions efficiently. The high computational demands may lead to increased costs and potential scalability issues.

Moreover, ZK rollups face the issue of centralization risk. Since the technology relies on trusted setups, it introduces a single point of failure. If the trusted setup is compromised, the entire system could be vulnerable to attacks, undermining the security and decentralization principles that underpin blockchain technology.

In addition, interoperability with other blockchain networks can be limited. ZK rollups are designed to operate within their own ecosystem, making it difficult for them to seamlessly interact with other blockchain platforms. This limitation can restrict the use cases and potential applications of ZK rollups, limiting their overall appeal and adoption.