Ever find yourself hunched over your laptop, eyes glazed, slack jawed, and stunned by the quantity of information modern life is throwing at you? You might take a break to stare at your phone. Or you could try switching from one browser tab to the next while checking your email and inching closer to the day’s deadline.  Some people call this TikTok brain. Others call it brain rot. Either way, it feels like a distinctly 21st-century affliction, caused by scrolling through too many short-form videos and social media feeds that trains your brain to seek out little hits of dopamine and r...