He looks around.
The woman and her book draw his attention enough that he approaches and tries to get a glimpse of the words.
"Hello," he says, smiling in what might be meant as a friendly manner.
"The significance of that symbol is completely opaque to me," he mentions.
"I admit I'm beginning to develop a guess, but it's based substantially in personal history which may not apply."
"Mm. What sort of a world are you from? One which contains both widely available print books and reproductive cloning, apparently, but besides that?"
"Mine has an Earth also, but I don't live there. 2998. No magic. A whole galaxy full of planets with humane and reasonable laws about the possible applications of cloning, and it was just my luck to be produced on the one planet with no humane and reasonable laws about that or anything else."
"I'm luckier than the average clone made in that lab, two times over - I was a substitution plot rather than a brain transplant target, and then I got away."
"Yeah. For the rich and decrepit. Old body starts to wear out, no problem; just have 'em grow you a new one. The clone's brain is of course mere waste material, when the time comes. Unethical practices like that are why the rest of the galaxy looks down on that planet."
"Cloning individual organs, without the rest of the human attached, has been a solved problem in my world for centuries. Want me to send you home with some books? See if you can get the technology started early?"
He goes. He comes back in short order with a stack of slightly odd-looking books - is that plastic? - and a small towel.
"You're welcome," he says. "Oh - I'm Mark, by the way."