A couple years. He’s a genius but he’s divorced from his own emotions, so he comes across as kind of heartless because of his tendency to go with logic over feeling. There’s a rumor among the student body that he’s a robot. Artya probably also helps cover physics, so they’ve probably shared lesson plans before, maybe. He probably needs more people in his life to encourage his almost non-existent compassion, even if the first few times it clearly doesn’t compute that he shouldn’t say something that is technically right but also kind of mean to point out.