As we all know, time travelers have to be very careful when they visit the past, because their evolved immune systems allow them to harbor pathogens that the olde timey people are defenseless against. One careless bowel movement, a single badly timed cough, a bit of blood spilled, and whole civilizations are in pandemic peril. Surviving to the future means adapting to the risks of the past. Our ancestors harbored … Continue reading Cory Doctorow: Persuasion, Adaptation, and the Arms Race for Your Attention