Remembering in chunks
Miller (1956), known for Miller's law, proposed chunking to exceed memory limits. Chase and Simon (1973) showed chess masters recall real positions at a glance but random ones like novices, because they store familiar patterns as chunks. Gobet et al. (2001) note chunks form automatically through learning or can be built deliberately.
How many per group
Cowan (2001) puts unrehearsed capacity near four chunks, so group digits in threes or fours. Thalmann et al. (2019) show chunking also frees capacity for other items. On screens, Gestalt proximity and subheadings make chunks visible, easing the working memory load Sweller (1988) describes.
Text and screens
Per Moran (2016), split long text into short paragraphs, subheadings and lists. Group related settings into sections and break long sign-up forms into steps. Over-fragmenting breaks flow, and meaningless splits do not aid memory; chunks must be units users understand.
FAQ
- How does it differ from Miller's law?
- Miller's law states the capacity limit; chunking is how more fits within it.
- Where is it most useful on mobile?
- Number entry, long settings lists and long forms.
Sources reviewed: 2026-10-27
References
- Miller, G. A. (1956). The magical number seven, plus or minus two: Some limits on our capacity for processing information. Psychological Review, 63(2), 81–97. The paper that introduced chunking as a way past memory limits.
- Chase, W. G., & Simon, H. A. (1973). Perception in chess. Cognitive Psychology, 4(1), 55–81. Chess experts remember positions as chunks.
- Gobet, F., Lane, P. C. R., Croker, S., Cheng, P. C.-H., Jones, G., Oliver, I., & Pine, J. M. (2001). Chunking mechanisms in human learning. Trends in Cognitive Sciences, 5(6), 236–243. Review distinguishing deliberate and automatic chunking.
- Cowan, N. (2001). The magical number 4 in short-term memory: A reconsideration of mental storage capacity. Behavioral and Brain Sciences, 24(1), 87–114. Capacity of about four chunks, useful for group sizes.
- Thalmann, M., Souza, A. S., & Oberauer, K. (2019). How does chunking help working memory? Journal of Experimental Psychology: Learning, Memory, and Cognition, 45(1), 37–55. Chunking frees capacity for other items too.
- Moran, K. (2016, March 20). How chunking helps content processing. Nielsen Norman Group. Practical guidance on chunking content.
- Sweller, J. (1988). Cognitive load during problem solving: Effects on learning. Cognitive Science, 12(2), 257–285. Cognitive load theory explains why chunking helps.
