“worse. The second way switching harms your attention is what we might call the screw-up effect. When you switch between tasks, errors that wouldn’t have happened otherwise start to creep in, because – Earl explained – ‘your brain is error-prone. When you switch from task to task, your brain has to backtrack a little bit and pick up and figure out where it left off’ – and it can’t do that perfectly. Glitches start to occur. ‘Instead of spending critical time really doing deep thinking, your thinking is more superficial, because you’re spending a lot of time correcting errors and backtracking.’ Then”