Applicability is the Next Bottleneck for AGI: Knowing When to Use Capabilities

joecole · x · 2026-08-17

This post explores the distinction between "capability" and "applicability." The author argues that as base models saturate benchmarks but still make mistakes in practice, the real bottleneck is "applicability"—the skill of knowing when to deploy which capability. This boundary is highly contextual and likely a learned policy rather than a simple rule. The author draws an analogy to the router in Mixture-of-Experts models, suggesting that learning when to activate a capability is harder than acquiring the capability itself.

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