Itamar

The "Flow Owner Era" thesis isn't about one solution winning. It's about protocols recognizing their own valuable order flow, and deploying the right tools for each arbitrage regime they generate.

This is what we built Reflex to solve. Not to replace pricing mechanisms, but to complete the picture. PFDA handles the margins. Reflex handles the contested executions. Together, protocols capture MEV across both regimes.

There's a distinction in MEV that doesn't get enough attention: Not all arbitrage opportunities are created equal. Understanding the difference between marginal and contested arbitrage explains why no single mechanism captures all MEV. A thread 🧵

MEV discourse has gotten good at attribution. We can measure what's extracted, from which pools, by which searcher types. The dashboards are getting more precise. What's harder to measure, and what I think matters more, is the counterfactual. Not "how much leaked" but "how much of what leaked was structurally preventable with different execution architecture." Those are very different numbers, and they point toward very different interventions. If most leakage is from contested arbitrage that could have been internalized via same-transaction execution, the solution is execution infrastructure. If most leakage is from cross-venue arbitrage that no single protocol can capture alone, the solution is more complex. The current framing shows total MEV as the key metric: optimizes for the impressiveness of the problem rather than tractability of the solution. Better to ask: of the MEV your protocol generated last month, how much fell into the execution-addressable category? That's the number that tells you whether to build.

Something I keep noticing: MEV discourse conflates the measurement problem with the capture problem. There's been real progress on measurement; dashboards, LVR accounting, better attribution of what's being extracted from which pools. That's genuinely useful. But measurement doesn't reduce leakage. Knowing exactly how much is going to validators doesn't stop it from going to validators. The capture problem is harder and less legible. It requires changing execution architecture, not just instrumentation. Which is probably why measurement gets more attention, it produces outputs that are easy to point at. The protocols that close the gap between "we know what we're losing" and "we've stopped losing it" are going to look very different from each other. That's the interesting design space right now.

The "Flow Owner Era" thesis isn't about one solution winning. It's about protocols recognizing they own valuable order flow, and deploying the right tools for each arbitrage regime they generate.

This is what we built Reflex to solve. Not to replace pricing mechanisms, but to complete the picture. PFDA handles the margins. Reflex handles the contested executions. Together, protocols capture MEV across both regimes.

There's a distinction in MEV that doesn't get enough attention: Not all arbitrage opportunities are created equal. Understanding the difference between marginal and contested arbitrage explains why no single mechanism captures all MEV. 🧵