The current Ethereum Layer 2 networks could be described as 'a hundred flowers blooming', but on the flip side, it's 'each one fighting their own battle': Optimism users transferring assets to zkSync have to take several detours; developers from different chains wanting to collaborate can’t even align their technical interfaces. However, Caldera's 'metal layer' is acting as this 'traffic commander', turning chaos into order.

Its core logic is very simple: do not reinvent the wheel, but rather connect all existing Rollup frameworks (like Optimism, Arbitrum) together to create an 'interoperable umbrella structure'. Just like a subway system, no matter whether you take Line 1 or Line 5, you can reach anywhere through transfer stations (metal layer); the same applies to assets and data.

When developers build chains with Caldera, they automatically connect to this 'subway network'. For example, when a gaming company builds a chain, players' items can easily transfer to DeFi chains for financial management; when artists mint NFTs, copyright fees can be settled directly through the payment chain. This level of fluency used to require countless cross-chain bridges, but now it’s all handled by one metal layer.

$ERA The role of the token here is like a 'subway ticket + membership card': pay for the ride (transaction fees), recharge and upgrade (staking to enhance the network), and vote to decide whether to add new lines (governance). As of mid-2025, 27 million wallets are using this 'subway system', and one can only say that blockchain users have waited too long for this day.#Caldera @Caldera Official