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Comment 500 means statistically significant health effect (Score 4, Interesting) 129

When CO2 gets above about 500ppm, you'll start to see statistically observable health effects in humans. People who are more susceptible to CO2 toxicity will feel drowsy, run-down, and complain that air quality is noticeably poor. At 1000ppm, about 50% of humans will begin showing these symptoms. At this rate, we'll see 1000ppm in the next century, and maybe faster as America tries so hard to make itself great again.

Comment Re:Excellent (Score 1) 207

Difficult is not equal to impossible. Heat can be used to boil working fluids, which can be used to drive turbines, which can create energy, which can in turn be used to run AI chips, which give off heat, which can then also be harvested to boil working fluids...Not really a perpetual motion machine, but the inefficiency in the system can be used to suck more heat out of the heat pumps anyway. Inefficiency in this case is a feature.

Comment Re:"Abstraction: Towards an Abstracter Abstract" (Score 1) 111

What we need is a 2nd study, using 400 students, separated into four groups:
1. Using Google ONLY by looking at the 3rd page of results (the first two pages are now taken up with Gemini AI and targeted advertising).
2. Using ChatGPT Only.
3. Using inventory computers in a large metropolitan library
4. Using old fashioned card catalogs and books.

I wonder if we chose a significantly esoteric subject, with a 100 question exam given after a week, if any useful clustering could be detected.

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