04/08/2026
Multitasking has a reputation as a skill worth mastering. The research tells a different story.
What the brain actually does when we "multitask" is switch rapidly between tasks, disengaging from one and reconfiguring for the next. Each switch carries a real cost in speed, accuracy and memory, a finding confirmed repeatedly across decades of cognitive psychology research and more recently through fMRI and EEG studies.
There's no true parallel processing happening. The brain is constantly deciding what deserves attention right now, and that decision has a price, even when it feels instant.
Single-tasking isn't a productivity trend. It's how attention actually works.