The Mood Chip: A group of biotech-hardware entrepreneurs have developed a revolutionary new "mood chip" that can be surgically implanted into your brain. Originally developed to treat Alzheimer's, they've found that it can treat a wide array of symptoms, from depression to ADHD. The chip can be programmed to give you a "feeling boost" in any emotional direction you like; in fact, different versions of the chip are marketed with names like Happy, Calm, Focused, Inquisitive, Ambitious, Compassionate, Decisive, Empowered, and Positive. (Think of these in relation to the problem loops you identified earlier.)