AI Reality Check

Judging AI based on free-tier ChatGPT is like evaluating the state of smartphones by using a flip phone. 

Excellent article by Matt Shumer. Here’s an excerpt:

How fast this is actually moving

Let me make the pace of improvement concrete, because I think this is the part that’s hardest to believe if you’re not watching it closely.

In 2022, AI couldn’t do basic arithmetic reliably. It would confidently tell you that 7 × 8 = 54.

By 2023, it could pass the bar exam.

By 2024, it could write working software and explain graduate-level science.

By late 2025, some of the best engineers in the world said they had handed over most of their coding work to AI.

On February 5th, 2026, new models arrived that made everything before them feel like a different era.

If you haven’t tried AI in the last few months, what exists today would be unrecognizable to you.

Read the full article here: https://shumer.dev/something-big-is-happening

AI-Powered Sleep Analysis Predicts Dementia Years Before Symptoms Appear

Researchers at Mass General Brigham have developed an AI tool that analyzes brain wave activity during sleep using EEG recordings to predict future cognitive impairment. The study, published in the Journal of Alzheimer’s Disease, tracked women over 65 for five years, identifying subtle changes in brain wave patterns—particularly in deep sleep gamma frequencies—that preceded cognitive decline. The AI model successfully identified 85% of those who later developed impairment with an overall accuracy of 77%. These findings suggest that wearable EEG devices could become a powerful early detection tool, allowing for timely interventions to slow or prevent dementia. Researchers are now exploring whether manipulating brain activity during sleep could further reduce cognitive decline risk.

Also of note, the study suggests that wearable EEG devices could help identify individuals at risk for dementia, paving the way for earlier interventions. Maybe someday your Apple Watch will be able to detect the signs of future cognitive impairment.