"Ziz
Impostors keep thinking it's safe to impersonate single goods. A nice place to slide in psyche/shadow, false faces, "who could ever falsify that I'm blaming it on my headmate!"
Saying you're single good is saying, "Help, I have a Yeerk in my head that's a mirror image of me. I need you to surgically destroy it, even if I'm then crippled for life or might die in the process. Then kill me if I ever do one evil act for the rest of my life. That's better than being a slave. Save me even though it is so easy to impersonate me. And you will aggro so many impostors you'll then be in a fight to the death(s) with. Might as well then kill me too if I don't pass an unthinkable gom jabbar. That'll make us both safer from them and I care zero about pain relative to freedom from my Yeerk at any cost."
It's an outsized consequentialist priority, even in a doomed timeline, to make it unsafe to impersonate single goods.
Critical to the destiny of the world. The most vulnerable souls impostors vex. To bring justice to individual people, from collective punishment."
https://openvallejo.org/2025/01/31/zizian-namesake-who-faked.... More detail.