The Attention Advantage

Simon, H. A. (1971). “Designing Organizations for an Information-Rich World.” In Greenberger (Ed.), Computers, Communication, and the Public Interest, pp. 37–72. Johns Hopkins Press.

“A wealth of information creates a poverty of attention, and a need to allocate that attention efficiently.” Nobel in Economic Sciences, seven years later.

Mark, G., Gonzalez, V. M., & Harris, J. (2005). “No Task Left Behind?” CHI 2005; Mark, Gudith & Klocke (2008). “The Cost of Interrupted Work.” CHI 2008; Mark, G. (2023). Attention Span. acm.org

Recovery from one interruption runs over twenty-three minutes. Average screen focus fell from ~2.5 minutes to roughly 47 seconds — screen focus, not “the human attention span.” People compensate by working faster, at the cost of stress.

Macknik, S. L., King, M., Randi, J., Robbins, A., Teller, Thompson, J., & Martinez-Conde, S. (2008). “Attention and awareness in stage magic: turning tricks into research.” Nature Reviews Neuroscience, 9(11), 871–879. nature.com

The paper with magicians as co-authors. See also Teller, Smithsonian Magazine (2012): “Neuroscientists are novices at deception.”

Simons, D. J., & Chabris, C. F. (1999). “Gorillas in our midst: sustained inattentional blindness for dynamic events.” Perception, 28(9), 1059–1074. sagepub.com

About half miss a nine-second chest-thumping gorilla while counting passes (miss rates 42–58% by condition — no single hard percentage).

Drew, T., Võ, M. L.-H., & Wolfe, J. M. (2013). “The invisible gorilla strikes again: sustained inattentional blindness in expert observers.” Psychological Science, 24(9), 1848–1853. sagepub.com

24 expert radiologists; 20 of 24 missed a gorilla ~48× nodule size. Eye-tracking showed most of the missers looked directly at it.

Kuhn, G., & Land, M. F. (2006). “There's more to magic than meets the eye.” Current Biology, 16(22), R950–R951. cell.com

63% reported seeing a ball leave the hand and vanish — a ball that never left the hand. Later work shows the illusion survives without visible gaze cues; expectation carries it.

Otero-Millan, J., Macknik, S. L., Robbins, A., & Martinez-Conde, S. (2011). “Stronger misdirection in curved than in straight motion.” Frontiers in Human Neuroscience, 5:133. frontiersin.org

Curved motion drives smooth pursuit; straight motion produces saccades. A pickpocket's intuition, confirmed in the lab.

Benway, J. P. (1998). “Banner blindness: The irony of attention grabbing on the World Wide Web.” Proc. Human Factors and Ergonomics Society, 42(5), 463–467. sagepub.com

Ad-shaped things get filtered. Replicated repeatedly since, including NN/g eye-tracking work (Nielsen, 2006, the F-pattern, 232 users).

Jobs, S. (2007). Macworld San Francisco keynote, January 9.

“An iPod, a phone, an internet communicator... Are you getting it? These are not three separate devices.” One loop, opened, held, closed — the canonical business example of the method.

Zeigarnik, B. (1927). “Das Behalten erledigter und unerledigter Handlungen.” Psychologische Forschung, 9, 1–85.

Interrupted tasks recalled roughly twice as well. The Berlin café waiters are the canonical origin story; replications vary in size, the direction is robust.

Loewenstein, G. (1994). “The psychology of curiosity: A review and reinterpretation.” Psychological Bulletin, 116(1), 75–98. apa.org

Curiosity as an information gap — mildly aversive, so the mind is pulled to close it.

Redelmeier, D. A., & Kahneman, D. (1996). Pain, 66(1), 3–8; Redelmeier, Katz & Kahneman (2003). Pain, 104(1–2), 187–194. doi.org

The peak-end rule: remembered experience tracks the peak and the end, not the duration — including the randomized follow-up where a milder ending improved the memory of the whole procedure.

Kuhn, G. (2019). Experiencing the Impossible: The Science of Magic. MIT Press; Lamont, P. (2004). The Rise of the Indian Rope Trick.

Spectators misremember tricks as more impossible over time; explanatory details fall away; the Indian Rope Trick exists only in inflated retelling. Memory is the product — design what it keeps.

Houdini's vanishing elephant: contemporary press, January 1918; Silverman, K. (1996). Houdini!!!; Steinmeyer, J. (2003). Hiding the Elephant.

A theatre seating over five thousand; most of the audience couldn't see into the cabinet — they took Houdini's word for the vanish. Figures are period publicity, told loosely.

Houston Airport baggage walk: Stone, A. (2012). “Why Waiting Is Torture.” The New York Times (nytimes.com); Maister, D. (1985). “The Psychology of Waiting Lines.”

Rerouted so passengers walk six minutes and wait two: complaints fell to nearly zero with identical total time. Numbers come from executive accounts via journalism — a story with round numbers, not a dataset.

SEC (1998). A Plain English Handbook, preface by Warren E. Buffett. sec.gov

Buffett drafts letters as if to his sisters, then deletes the salutation. Write with a specific person in mind — aim before you write.

Johansson, P., Hall, L., Sikström, S., & Olsson, A. (2005). “Failure to detect mismatches between intention and outcome in a simple decision task.” Science, 310(5745), 116–119. science.org

Choice blindness: when sleight of hand swaps your choice and the swap goes undetected, you confidently explain a choice you never made. The figures apply to manipulated trials only — not “87% of all choices.”

Olson, J. A., Amlani, A. A., Raz, A., & Rensink, R. A. (2015). “Influencing choice without awareness.” Consciousness and Cognition, 37, 225–236. doi.org

Card forcing under controlled conditions: the force succeeded 98% of the time; only 9% sensed any influence. Scope: the visual card-force paradigm in that paper.

De Beers / “A Diamond Is Forever”: Friedman, U. (2015). The Atlantic (theatlantic.com); Ad Age “Top 10 Slogans of the Century” (1999).

Written 1947 by Frances Gerety: a manufactured tradition that feels ancient. Presented in the talk as an ambiguous case — you judge which side of The Line it sits on.

Dark patterns: Brignull, H. (2010–). deceptive.design; Mathur, A., et al. (2019). “Dark Patterns at Scale.” Proc. ACM on Human-Computer Interaction, 3(CSCW). doi.org

1,818 instances across ~11,000 shopping sites. The charlatan's side of The Line, at scale.

Derren Brown, “Paying with Paper” (Channel 4); Brown, D. (2006). Tricks of the Mind.

Television demonstration, not a controlled study — used in the talk as the limit of misdirection: the hot-dog vendor who actually looked at the paper refused. No captured attention, no force.

Jasper Maskelyne — myth, told as myth: Stroud, R. (2012). The Phantom Army of Alamein; Maskelyne's own memoir (1949) as the legend's origin.

The archival record says the real desert deception belongs to camouflage officers and the Royal Engineers; Maskelyne's role was, at best, marginal. Told on stage as a debunked story — never straight.

Seneca, Epistulae Morales ad Lucilium, Letter 45.8 (~45 AD); Beni Hassan tomb paintings (~2100 BC).

Seneca on the conjurer's cups: it is the very trickery that delights him — the first author of the talk's ethics contract. Beni Hassan may show the oldest trick we have; the interpretation is disputed, so the hedge stays.

Spotify Wrapped: Spotify Newsroom annual campaign pages (branded “Wrapped” since 2016; preceded by “Year in Review,” 2015). newsroom.spotify.com

“Designed peak-end ritual” and “Zeigarnik loop” are the talk's analysis of a public product, not Spotify's claims. No engagement statistics — on stage or here.