代理支付缺失的一层：问责机制——Visa、Mastercard、Stripe、Coinbase、Revolut 都差这一步

Agents now spend money on our behalf at a meaningful scale. The five companies racing to host that economy have built impressive infrastructure for telling you who showed up and what appeared to happen. None of them have built infrastructure that proves what actually happened, or makes anyone pay when it didn't. That g…