{"type":"post","id":"the-expensive-loop-problem-22-minute-read-analysis-03f819","slug":"the-expensive-loop-problem-22-minute-read-analysis-03f819","title":"The Expensive-Loop Problem (22 minute read)","description":"Thesis: Performance on cheap, rapidly verifiable tasks does not establish capability in domains where feedback is costly or delayed.","retrieval_nugget":"Thesis: Performance on cheap, rapidly verifiable tasks does not establish capability in domains where feedback is costly or delayed.","published_at":"2026-10-13","updated_at":"2026-10-13","record_date":"2026-10-13","date_kind":"published_at","topics":[],"source_urls":["https://www.lesswrong.com/posts/2mStxuNDMdaWdyHu6/the-expensive-loop-problem"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:the-expensive-loop-problem-22-minute-read-analysis-03f819","status":"published","visuals":[],"editorial_provenance":{"schema_version":"newruntime-editorial-copy-v1","content_status":"source_grounded_final","final_copy_sha256":"sha256:5e166bbb03b91bce48f9fcaab890ec5473b5f5b97c22debdb54aaf1ddde84a72","reviewed_at":"2026-10-13T14:08:37.162Z","source_evidence_count":1,"verified_claim_count":2,"site_analysis_schema_version":"newruntime-site-analysis-v1","site_object_kind":"field_note","observed_fact_count":2,"implication_count":1,"watch_condition_count":1,"related_record_count":0},"analysis":{"schema_version":"newruntime-site-analysis-v1","object_kind":"field_note","thesis":"Performance on cheap, rapidly verifiable tasks does not establish capability in domains where feedback is costly or delayed.","observed_facts":[{"text":"The essay distinguishes cheap-loop tasks with quick, deterministic, inexpensive experiments from expensive-loop tasks constrained by real-world cost or delay.","source_urls":["https://www.lesswrong.com/posts/2mStxuNDMdaWdyHu6/the-expensive-loop-problem"]},{"text":"It names proxy selection, theory-building, resource awareness, and error correction as abilities required in expensive-loop environments.","source_urls":["https://www.lesswrong.com/posts/2mStxuNDMdaWdyHu6/the-expensive-loop-problem"]}],"mechanism":"When direct evaluation is expensive, an agent must choose cheaper proxies, infer how they relate to the real objective, and revise them when they stop transferring; otherwise it can optimize the proxy rather than the target or waste resources on low-value experiments.","why_now":"As AI systems are considered for work beyond easily scored coding or other computer-checkable tasks, the distinction helps explain why benchmark success may not predict performance where experiments are costly and feedback sparse.","implications":["First implication: teams evaluating agents for such work should test proxy choice, experiment value, and resource allocation—not only final scores on cheap checks."],"evidence_boundary":"This is an author’s conceptual argument, not a new empirical study or a measured model comparison.","watch_conditions":["First watch condition: look for evaluations in expensive-loop settings that report how agents choose proxies, update theories, allocate resources, and correct errors when feedback is limited."],"related_records":[],"new_branch_reason":"No prior New Runtime record was supplied; this essay introduces a distinct analytical frame for capability development under costly feedback."},"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/the-expensive-loop-problem-22-minute-read-analysis-03f819/","markdown":"https://newruntime.com/posts/the-expensive-loop-problem-22-minute-read-analysis-03f819.md","json":"https://newruntime.com/posts/the-expensive-loop-problem-22-minute-read-analysis-03f819.json"},"next_reads":[{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}