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Amma sent a single dot in our family WhatsApp group from Chennai. My cousins in London laughed. My uncle in Toronto was confused. But I understood. She'd finally joined the cash-in rewards app, our grandmother proudly telling me later how neighbors taught her to tap and earn small amounts. That dot meant she'd figured it out herself. Every week now, her messages arrived with little victory dots. She bought my nephew's birthday gift entirely from those earnings. We video-called, watching her face light up as she described our village's monsoons, her voice carrying generations across oceans. That single dot became our thread home.