"Kamuor mentioned something about space-folding?"

"Yes. Any space I own I can make arbitrarily bigger on the inside." 

"- arbitrarily to what scale?"

"Well, I've never had reason to try to fold space more densely than about a city's worth to a room, but I haven't run into any limits." 

"Would it persist if you died? I don't have any reason to expect anyone to wish you harm, I merely imagined a city's worth of inhabitants and their possessions suddenly crammed into the space of a room..."

"I...can't say for sure, never having died, but I think it would persist." 

"Most people don't own their homes," Delin explains. "Landowning is blue. It's not more planets, but it's meaningfully quite a lot more space, if you don't run into limits on what ratios you can accomplish or how much of your attention it takes..."

"Changing things takes attention but once they're changed they stay like that until I change them back." 

"Does the amount of attention depend on the scale of the change? Does it take longer to turn a room into a city than into a block?"

"Not exactly--it depends more on the level of detail than the size of the result; I have to imagine a change but once I've got it put together enacting it is simply a force of will." 

"That makes sense. I'm sure there are many applications of your abilities, that's just the one likely to be of the greatest interest to the most people."

"Yes, I'm getting that impression. My species' reproductive drive is much smaller than yours; we like babies but for the most part we don't desperately want them. Evolution hasn't caught up to reliable birth control yet." 

"How interesting, we weren't expecting everyone to have castes but we were expecting everyone to want babies at least as much as us..."

"Sex being fun did the job fine up until a few decades ago." 

"Do you not have sideways people?" Kamuor asks.

"Oh, sure, but there was still social pressure to marry and produce heirs."

"I'm sure a lot of greens would be thrilled to interview you about that and a dozen other topics to do with your homeworld," remarks Delin. "How do you feel about publicity - pacing, scope, content."

"I will be irked if I find out I have been used to push an agenda I wasn't consulted on. I would prefer not to become public knowledge until I have enough of an understanding of how things work here that I can be sure to avoid saying 'I'm pretty sure soap isn't a caste' to someone who'll take it less well, but I'm alright with being made known to and working with people who can be trusted not to immediately--ah, post me to their favorite social media accounts--in the meanwhile." 

"Anyone affiliating with you will have darha up to their eyebrows; that will tend to push any agenda they so much as nod at," Delin points out. ("Darha" does not translate neatly.)

"'Darha' doesn't translate neatly," she reports, "but I think I get what you're saying. I understand that; it's why I tried to get as much information on you as I could before I agreed to meet you. I don't expect to vet every pet cause anyone I work with ever has, but I expect that my image will not be explicitly affiliated with anything I didn't agree to and that you won't deliberately choose greens who are likely to nod at agendas you expect me to dislike. Or if they're brilliant enough to be worth it you'll warn me." 

"- In credit countries the way you get children is money," says Delin. "In permission countries the way you get children - at the blue and green and sometimes yellow level of competition, anyway - is called 'darha'. It's no single thing. At any rate, I don't think it will be hard to avoid announcing your nonexistent endorsement of a plan to reform occupational licensing or what have you."

"Good. --Although being from a casteless society you can probably assume I'm biased in favor of dual-casteing things and other policies that introduce flexibility to the system." 

"It wasn't actually obvious if casteing would look like a good idea to people who hadn't invented it," says Delin, "but good to know."

"From where I'm standing it looks unnecessarily restrictive. I'm sure it has benefits that aren't obvious to me, and even if it were the case that an absence of castes was objectively better that doesn't mean attempting to rip them out from everyone would be a good idea, so I'm not going to meddle with it, but it's something I'm just as glad not to have grown up with." 

"All right. I do think it might be useful for you to generally present yourself as though blue, with the understanding that if that's ever inconvenient it won't limit you because really you're an alien."