Hi, Shrewd!        Login  
Shrewd'm.com 
A merry & shrewd investing community
 Best Of MacroBest OfAll BoardsThe Shrewd’m WeeklyLearn to InvestHow to Become Shrewd
Search
Shrewd'm.com Merry shrewd investors
Search
Best Of MacroBest OfAll BoardsThe Shrewd’m WeeklyLearn to InvestHow to Become Shrewd

The week's question
In March 2025, in the thread "Re: OT, out", Umm asked the members: "Do you think it is because America is made up of magical soil that makes businesses based in America magically profitable?" This week it is put to everyone again. The button below opens the small thread re-asking it - read what others have said so far, then give your own answer as an ordinary reply.
Answer this questionContinue to Shrewd'mThis note won't appear again
Personal Finance / Macroeconomic Trends & Risks
Unthreaded | Threaded | Whole Thread (11) |
Author: PucksFool ✧✺  😊 😞
Number: of 4582 
Subject: Re: Does AI boost productivity?
Date: 06/28/25 8:32 AM
Post New | Post Reply | Report Post | Recommend It!
No. of Recommendations: 1
I wonder what results you would get from one of the AI services if you asked it?

I ran across this study.
media.mit.edu - Your brain on chatgpt
This study explores the neural and behavioral consequences of LLM-assisted essay writing. Participants were divided into three groups: LLM, Search Engine, and Brain-only (no tools). Each completed three sessions under the same condition. In a fourth session, LLM users were reassigned to Brain-only group (LLM-to-Brain), and Brain-only users were reassigned to LLM condition (Brain-to-LLM). A total of 54 participants took part in Sessions 1-3, with 18 completing session 4. We used electroencephalography (EEG) to assess cognitive load during essay writing, and analyzed essays using NLP, as well as scoring essays with the help from human teachers and an AI judge. Across groups, NERs, n-gram patterns, and topic ontology showed within-group homogeneity. EEG revealed significant differences in brain connectivity: Brain-only participants exhibited the strongest, most distributed networks; Search Engine users showed moderate engagement; and LLM users displayed the weakest connectivity. Cognitive activity scaled down in relation to external tool use. In session 4, LLM-to-Brain participants showed reduced alpha and beta connectivity, indicating under-engagement. Brain-to-LLM users exhibited higher memory recall and activation of occipito-parietal and prefrontal areas, similar to Search Engine users. Self-reported ownership of essays was the lowest in the LLM group and the highest in the Brain-only group. LLM users also struggled to accurately quote their own work. While LLMs offer immediate convenience, our findings highlight potential cognitive costs. Over four months, LLM users consistently underperformed at neural, linguistic, and behavioral levels. These results raise concerns about the long-term educational implications of LLM reliance and underscore the need for deeper inquiry into AI's role in learning.
Post New | Post Reply | Report Post | Recommend It!
Print the post
Members reply directly to PucksFool here — and replies get answered. Reading is free; so is joining the conversation. Join Shrewd'm »
This community has written 4,576 posts about Macroeconomic Trends & Risks. The article-length ones it recommended most:
AI Tarpits · 36 recs · 2026
End of an era - profit slowdown · 36 recs · 2023
Control Panel: Trend changes in 2026 · 34 recs · 2026
From the Oregon Bay Area (a blogger) · 33 recs · 2025
Lerner Symmetry Theorem · 32 recs · 2025
Unthreaded | Threaded | Whole Thread (11) |


Announcements
Macroeconomic Trends & Risks FAQ
Contact Shrewd'm
Contact the developer of these message boards.

Ticker or Board Name Author

Best Of Macro | Best Of | Favourites & Replies | All Boards | Followed Shrewds | Open Questions | Moving a community