Victor's question lands hard: what happens when the augmentation becomes full automation? This practitioner just collapsed five days of financial modeling work into one day using Claude's Excel plugin — not by doing the work for them, but by becoming a debugging partner that actually understands circular references and cross-sheet dependencies. The productivity gain is real and measured. But here's the uncomfortable part: they're still constructing the sheets, still making the strategic choices about what to model. The tool is a spectacular co-pilot. The next step Victor's pointing at — where Claude builds the entire model from a prompt — feels both inevitable and destabilizing. We're watching the last mile of human-in-the-loop knowledge work, and it's compressing faster than anyone expected. The practitioner didn't expect it to 'hit this hard.' Neither did most of us.