Attention Is a Resource With a Depletion Curve

Attention is not a constant — it is a resource with a depletion curve, and the calendar lies about that.

I tracked mine while prepping darkheartlabs streams: overlay timing edits that took twenty minutes at 9am took forty-five at 4pm, with twice the rework. Same task, same tools, different remaining capacity. I had stacked hard layout work after eight hours of build troubleshooting because the slot was fixed — and paid in missed cues we caught only on replay.¹ Teams schedule contentious reviews after standups and wonder why the afternoon argument repeats. They are not lazy; they are drawing on an empty account and pricing the hour as if it were fungible.

Honest scheduling treats morning attention as scarce. Deep work first, meetings in the trough, admin when the curve has flattened. Reversing that order is a habit most orgs perform without measuring the tax.

Track your curve for a week before you trust anyone else’s prescription.

— JV · Dark Heart Labs.

Daniel Kahneman, Thinking, Fast and Slow (Farrar, Straus and Giroux, 2011) — on cognitive depletion and why effortful control degrades with use. ↩