The UTXO model, which Cardano has already advanced and is actively using, is now being adopted by Ethereum Layer 2s(@fuel_network, @aztecnetwork), despite them being built on the account model.
A prime example is @fuel_network. As a comprehensive blog post about Fuel highlights (see attached), they leverage the UTXO model for its powerful parallel transaction execution, which enables high throughput and low fees.
Another notable example, @aztecnetwork, adopted the UTXO model for privacy and ZK proof efficiency.
This trend underscores a core truth: while it can be more complex, the UTXO model is far superior to Ethereum's Account model in terms of parallelism, security, and scalability.
Cardano natively implemented the eUTXO model, an evolution of this UTXO model. It stands as the representative chain of the UTXO ecosystem, having proactively implemented and been enjoying all its benefits long before the aforementioned Fuel Network and Aztec began to adopt it.
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