[ that is good of him; piter is almost grateful in a quiet, private way. he's accepted it as fact that he is replaceable, but that doesn't mean he likes to talk about it. ]
It means precisely what it sounds like. [ this is a familiar topic to him, and he segues into it easily. ] Gholas, reconstructions of dead cells regrown to replicate the original. They are a possible alternative to acquiring a new Mentat— though mark that they are not used only with our kind— but a drawback is that they are devoid of the original's memories. [ and it is for that reason, he knows with some small sense of triumph, that he cannot be quite so easily replaced as it seems. ]