I've been tracking my daily output for three months, and the difference between my best and worst days comes down to one variable: how many times I switch tasks. Context switching is eating our productivity, and the 2-minute rule everyone loves is actually a trap for deep work. The evidence from time-tracking apps like RescueTime is hard to ignore, yet we keep celebrating multitasking as a skill. Should we treat task-switching as the primary enemy of getting things done?