Depending on the measurement method and your method of calibration, I'd assume "slightly below atmospheric" is probably just atmospheric.
Funnily enough, more CO2 in the blood can actually increase athletic performance and resilience against it is also helping with that.
I just open my windows though from time to time.
That's what I've been saying for some time now...
"No one really wants AI! They want their software to be faster or better, but do they care if the people in the background of the image have been removed by AI or not?" And in fact they don't.
Managers think they want AI but they actually want their people to work faster or better. Higher managers think they want AI so they can save money, or at least not fall behind the competitors, if those were to use AI to get an advantage.
Companies making software think they want AI because their competitors are using it, and they think the users want AI so the software can be perceived as modern, not falling behind.
And so on, and so on... other than Nvidia, openAI, Anthropic, etc, no one really wants AI.
Stuff like this makes me downright angry. Because people not into IT think Zoom is now equivalent to online meetings and many events are held with Zoom too. Job interviews, etc. Most people don't have any idea that their software is so bad and they are a scummy company best avoided. I'm trying to let the people around me know, but mostly they don't care.