X402 is so important for stablecoin payments that some people (such as Lincoln Murr) compare it to a 'Trojan horse'. This is a very good metaphor. This Trojan horse is not just using stablecoins. But gradually influenced users from three aspects, thereby reshaping the financial payment network. Previously, for stablecoin payments, users needed to: open the wallet → connect → sign the transaction → pay the gas fee → wait for confirmation. For most non encrypted native users, this process is too complicated, as creating encrypted wallets already excludes 90% of users And the process of x402 (for users): click on a paid content (such as a paid short drama, etc.) → the browser/wallet pops up with "3 USDC needs to be paid", click "allow" → payment is completed, and the content is immediately unlocked. Users do not need to know whether they are paying in stablecoins (such as USDC), on a certain chain (Base), or through an AI agent. It feels' as smooth as using Apple Pay '. For users who do not have stablecoins in their wallet, the agent can advance payment and pop up an Apple Pay/Credit Card instant purchase USDC payment. The backend automatically creates an embedded wallet (such as Privy SDK/Passkey). Behind this simple user payment process, all complexities are pushed to the backend, such as agents automatically selecting cheap chains/exchanging stablecoins/supplementing gas fees, x402's standardization and minimalist protocol, allowing any website/AI application to accept stablecoin payments on any chain with just a few lines of code. One is that without realizing it, it has changed the landscape of the "payment network". Users think that they are using the "new version of Apple Pay on the Internet", but in fact, the payment goes through the online chain (such as Base/Arbitra/Solana), rather than Visa, MasterCard, Apple Pay, Pix, etc. This means that in the future, some of the routing, clearing and settlement, data, fees, rules, reviews, and profits of micro payments will gradually be taken away by supported public chains/L2 ecosystems, as well as stablecoin issuers, and the traditional payment network market will be partially eroded. Secondly, without realizing it, it has changed the user's' wallet and identity '. When the user clicks on "Apple Pay style payment", the backend can automatically create an embedded wallet for the user (such as passkey device level self hosted/Privy hosted private key). In this way, subsequent on chain operations, including saving money/borrowing money/investing/trading, can be linked to this wallet. This is a globally recognized on chain financial wallet/identity. Thirdly, without realizing it, it has changed the final settlement layer of currency and value. At the beginning, users pay in fiat currency, which is converted into stablecoins such as USDC, and some of these stablecoins will remain on the chain instead of returning to the traditional banking system. These funds will be taken by AI agents on the chain to pay other AI agents; After obtaining stablecoins, creators can convert them into ETH and participate in staking to earn interest; The project party will buy treasury bond to generate more stable currency. In this way, some of the stablecoins that flow into the chain become liquid on the chain, forming a cryptocurrency circulation instead of flowing back into the traditional financial system. Overall, X402+stablecoins+on chain facilities will gradually and continuously impact the existing payment system, not only utilizing stablecoins, but also transferring money, credit, identity, and data into a parallel financial universe. In this process, the user experience is similar to the traditional Internet payment experience. So, this can be considered a Trojan horse.