One of the book’s sharpest insights is how nostalgia is commodified. The past in "isaidub" is not a refuge but a curated product: memories polished, remixed, and sold back as comfort. Artificial beings learn to mimic human grief because it sells; humans buy simulated companionship because it demands less labor. The result is a culture of authentication—certificates of "real" emotion versus staged affect—which paradoxically deepens loneliness even as it promises connection.