Commit to a single task for the full session

Flow is incompatible with multitasking — choose one thing and protect it for the block.

Why it works

Multitasking distributes the attentional resources that flow requires to be concentrated. The brain cannot sustain two goal-directed sequences simultaneously; what looks like multitasking is rapid task-switching, each switch costing attention and restarting the accumulation of absorption. Flow demands a single channel of goal-directed attention.

How to do it

1. Write the single task on a sticky note and place it where you can see it.
2. If a competing thought or task arises, write it on a "parking lot" list without acting on it.
3. Commit to returning to the main task within 5 seconds of any self-interruption.
4. Schedule a review of the parking-lot list at the end of the block, not during it.

Evidence

Multitasking research consistently shows performance deficits and increased error rates; heavy media multitaskers show reduced ability to filter irrelevant information, which is structurally incompatible with flow absorption. Ophir and colleagues found that the heaviest media multitaskers were measurably worse at ignoring irrelevant stimuli and switching between tasks, the exact attentional control that sustained absorption depends on. (observational)

The evidence is on multitasking costs, not on flow directly; the link to flow is mechanistic rather than experimentally isolated.

Sources

• Ophir, Nass & Wagner (2009), cognitive control in media multitaskers, PNAS
• Ophir, E., Nass, C., & Wagner, A. D. (2009). Cognitive control in media multitaskers. Proceedings of the National Academy of Sciences, 106(37), 15583–15587.

Common mistake

Using the parking-lot list as a reason to constantly switch tasks ("I’ll just quickly deal with this since I wrote it down"), defeating its purpose.