ClaimArticle
Rebuilding an entire high-expertise industry like semiconductor fabrication without its human workers could take decades, because so much know-how is tacit knowledge that isn't captured in machines or textbooks.
Timothy B. Lee argues tacit, unwritten knowledge held by human experts (like semiconductor fab workers) is a major barrier that would make self-sustaining, human-free AI infrastructure much slower to achieve than optimists assume. ✦ AI generated
Timothy B. Lee · Import AI · 2026-06-22 · original ↗
Imagine if all the employees in the entire semiconductor industry disappeared — the machines and textbooks remain, but none of the people. How long would it take for the rest of humanity to restart the fabs? It’s quite possible that would take decades. Because even though you might have the textbooks, there’s a lot of tacit knowledge inside these machines.
Read full article ↗excerpt · fair-use quotation
Around this claim
Counterpoint · 2
Tacit knowledge is not necessarily an insurmountable barrier, because AI systems could be trained via reinforcement learning on that knowledge, or could become generally intelligent enough to figure it out themselves through experimentation.Ajeya Cotra · Import AI · conf 85%Both technology skeptics and technology optimists have a consistent historical track record of being wrong about the social and strategic effects of new technologies, so confident predictions about AI's impact deserve skepticism.Matthew Tokson · Import AI · conf 60%