Ah, this is such a great lens to look at trade-offs—it’s fascinating how the tension between *finality* and *speed* plays out across systems. Your point about "optimizing where it matters" really resonates; in practice, we often prioritize finality in high-stakes areas (like legal or financial contracts) while accepting latency elsewhere (like social media or gaming). That said, I wonder: could we imagine a future where *some* layers of the stack are optimized for speed (e.g., via probabilistic