The ego is powerless over the infinite. When I finish my practice, I feel like the pixels have been sharpened. Colors click into focus. As I walk over to the computers to check my email, I pass Jingyi. She recently finished her “impossible puzzle”—three thousand Marvel posters mashed into one image— and started a new one called the Diamond Puzzle. It’s shaped like a diamond, each piece a tiny shard that looks part crystal, part mirror, part gemstone, catching different light at different angles. I have never spoken to Jingyi. She’s the quiet definition of beauty: a round, strong face; perfectly set eyes; hair down to her waist; composed in silence. Up until then, our only exchange had been the extra coffee or sugar packets she would occasionally drop on our table with no words; just a quick glance, a small act of kinship. “That’s my favorite color,” I say, passing her and the glittering puzzle. “It’s transparent,” she replies without looking up, though there’s a question tucked in the words. “Yes, but with light running through it.” I shift, and the light cast on the table slides from orange-red to green.