Quick-Glance Summary

I walk you through an MIT experiment where 54 EEG-capped volunteers wrote essays three ways: pure brainpower, classic search, and ChatGPT assistance.

Brain-only writers lit up the most neurons and produced the freshest prose; the ChatGPT crowd churned out near-identical essays, remembered little, and racked up what the researchers dub

cognitive debt :

the interest you pay later for outsourcing thought today.

A bonus “switch” round yanked AI away from the LLM devotees (cue face-plant) and finally let the brain-first team play with the toy (they coped fine), proving skills first, tools second.

I spiced the tale with calculator nostalgia, a Belgian med-exam cheating fiasco, and Professor Felienne’s forklift-in-the-gym metaphor to land one mantra: *scaffolds beat shortcuts*.

We peeked at tech “enshittification” once investors demand returns, whispered “open-source” as the escape hatch, and I dared you to try a two-day test—outline solo, draft with AI, revise solo, then check what you still remember.

Net takeaway: keep AI on a leash; let

thinking drive, tools navigate

.

If you think I’m full of digital hot air, record your own rebuttal and prove it.

Resources

MIT study

MIT Media Lab. (2025). Your brain on ChatGPT: Accumulation of cognitive debt.

https://www.media.mit.edu/publications/your-brain-on-chatgpt/

Long term consequences

(to be honest - pulled these from another list, didn't check all of them)

Clemente-Suárez, V. J., Beltrán-Velasco, A. I., Herrero-Roldán, S., Rodriguez-Besteiro, S., Martínez-Guardado, I., Martín-Rodríguez, A., & Tornero-Aguilera, J. F. (2024). Digital device usage and childhood cognitive development: Exploring effects on cognitive abilities.

Children

, 11(11), 1299.

https://pmc.ncbi.nlm.nih.gov/articles/PMC11592547/

Grinschgl, S., Papenmeier, F., & Meyerhoff, H. S. (2021). Consequences of cognitive offloading: Boosting performance but diminishing memory.

Quarterly Journal of Experimental Psychology

, 74(9), 1477–1496.

https://pmc.ncbi.nlm.nih.gov/articles/PMC8358584/

Ward, A. F., Duke, K., Gneezy, A., & Bos, M. W. (2017). Brain drain: The mere presence of one's own smartphone reduces available cognitive capacity.

Journal of the Association for Consumer Research

, 2(2), 140–154.

https://www.journals.uchicago.edu/doi/full/10.1086/691462

Zhang, M., Zhang, X., Wang, H., & Yu, L. (2024). Understanding the influence of digital technology on cognitive development in children.

Current Research in Behavioral Sciences

, 5, 100224.

https://www.sciencedirect.com/science/article/pii/S266724212400099X

Risko, E. F., & Dunn, T. L. (2020). Developmental origins of cognitive offloading.

Developmental Review

, 57, 100921.

https://pubmed.ncbi.nlm.nih.gov/32517613/

Ladouceur, R. (2022). Cognitive effects of prolonged continuous human-machine interactions: Implications for digital device users.

Behavioral Sciences

, 12(8), 240.

https://pmc.ncbi.nlm.nih.gov/articles/PMC10790890/

Wong, M. Y., Yin, Z., Kwan, S. C., & Chua, S. E. (2024). Understanding digital dementia and cognitive impact in children and adolescents.

Neuroscience Bulletin

, 40(7), 628–635.

https://pmc.ncbi.nlm.nih.gov/articles/PMC11499077/

Baxter, B. (2025, February 2). Designing AI for human expertise: Preventing cognitive shortcuts.

UXmatters

.

https://www.uxmatters.com/mt/archives/2025/02/designing-ai-for-human-expertise-preventing-cognitive-shortcuts.php

Tristan, C., & Thomas, M. (2024). The brain digitalization: It's all happening so fast!

Frontiers in Human Dynamics

, 4, 1475438.

https://www.frontiersin.org/journals/human-dynamics/articles/10.3389/fhumd.2024.1475438/full

Sun, Z., & Wang, Y. (2024). Two distinct neural pathways for mechanical versus digital memory aids.

NeuroImage

, 121, 117245.

https://www.sciencedirect.com/science/article/pii/S1053811924004683

Ahmed, S. (2025). Demystifying the new dilemma of brain rot in the digital era.

Contemporary Neurology

, 19(3), 241–254.

https://pmc.ncbi.nlm.nih.gov/articles/PMC11939997/

Redshaw, J., & Adlam, A. (2020). The nature and development of cognitive offloading in children.

Child Development Perspectives

, 14(2), 120–126.

https://srcd.onlinelibrary.wiley.com/doi/10.1111/cdep.12532

Geneva Internet Platform. (2025, June 3). Cognitive offloading and the future of the mind in the AI age.

https://dig.watch/updates/cognitive-offloading-and-the-future-of-the-mind-in-the-ai-age

Karlsson, G. (2019). Reducing cognitive load on the working memory by externalizing information.

DIVA Portal

.

http://www.diva-portal.org/smash/get/diva2:1327786/FULLTEXT02.pdf

Monitask. (2025). What is cognitive offloading?

https://www.monitask.com/en/business-glossary/cognitive-offloading

Sharma, A., & Watson, S. (2024). Human technology intermediation to reduce cognitive load.

Journal of the American Medical Informatics Association

, 31(4), 832–841.

https://academic.oup.com/jamia/article/31/4/832/7595629

Morgan, P. L., & Risko, E. F. (2021). Re-examining cognitive load measures in real-world learning environments.

British Journal of Educational Psychology

, 91(3), 993–1013.

https://bpspsychub.onlinelibrary.wiley.com/doi/10.1111/bjep.12729

Podcast episodes that inspired some thoughts

Felien Hermans (NL)

Tech won't save us

Screenstrong Families