Alzheimer's is brutal, and I get the urgency. But the practical consequence of legalizing embryo editing is a market that can't stay medical. Once clinics offer germline correction, the same service gets marketed for height, IQ, appearance. Surveys already show sizable demand for enhancement. Meanwhile, embryo CRISPR studies report mosaicism and off-target edits in a large share of embryos. So we'd risk creating new mutations in people who never consented, then pass them on. Screening embryos avoids that. That's why the safe, fair line is no germline editing.