Sometimes you can clearly feel it—the times are really changing. A while ago, I went to a café to write, and the guy next to me was typing code on his computer. Lines of AI commands were scrolling across his screen, and I glanced over—it was all machines talking to machines. At that moment, I suddenly thought: wow, AI isn’t just “talking” anymore, it’s starting to “do business.” You think I’m joking? Nope, even a16z has seriously calculated this: by 2030, the Agent Economy could hit $30 trillion. To put it simply—the future world will be one where every API call, every computation rental, every model interaction is a “paid transaction.” AI pulls data, rents bandwidth, allocates computing power—it’s all money. But here’s the twist: the money isn’t paid by humans, it’s paid by AI itself. And here’s the problem: AI transferring money to AI, faster than humans ever could—thousands of transactions per second—it needs a “money highway” built specifically for machines. That’s x402. You can think of it as the machine world’s version of “HTTP + SWIFT”: On one hand, it defines how machines communicate, On the other, it defines how payments, settlements, and millisecond-level deductions happen. And this money highway? Someone’s already started building it—@SeiNetwork. Sei’s blockchain is naturally designed for high-frequency, micro-payments: parallel execution, low fees, and ridiculously fast speeds. Running AI settlements on it? No congestion, no delays, no hiccups. Now think about this setup: The logic of the AI era is already crystal clear— Smart Agents are the “drivers”; x402 is the “toll system”; Sei is the “high-speed foundation.” So while many people look at AI and focus on models and intelligence, I’m looking at how the money flows. Because here’s what you need to know—the ones making money in the future won’t necessarily be the ones building the cars, It’ll be the ones building the roads. And Sei? They’re already building the high-speed highway for money in the AI world.