Agreed on substance – I started from the same skepticism and remain with it. Caveat just on structure of your argument: the population-level checks (SAT scores, AC vs. window-opening regions, decades of submarine/spacecraft work) are decisive against Satish-scale effects but close to powerless against small ones. Say true effect were d=0.1: all those comparisons would come back null, and so would most lab studies; hopelessly underpowered. So “we looked hard and found nothing” kills the version that caused the panic but leaves the subtle version about where prior plausibility put it. I don’t think it’s likely either to even have that lower-but-not-entirely-negligible effect, and the practical upshot is identical, because the honest case for ventilation is comfort, bioeffluents, and sleep rather than IQ points (well, assuming that conventional wisdom remains right) – and whether indoor plants make us happy will also continue to hinge on non-CO2 things anyway.
regardless, I simply updated to that I don’t need to worry about CO2 in most normal settings and I don’t have an opinion on whether it has a negligible effect at something like 2000ppm. Obviously at some point CO2 will have an effect on cognition just because an extremely high CO2 level (~40000ppm) is lethal.
Agreed on substance – I started from the same skepticism and remain with it. Caveat just on structure of your argument: the population-level checks (SAT scores, AC vs. window-opening regions, decades of submarine/spacecraft work) are decisive against Satish-scale effects but close to powerless against small ones. Say true effect were d=0.1: all those comparisons would come back null, and so would most lab studies; hopelessly underpowered. So “we looked hard and found nothing” kills the version that caused the panic but leaves the subtle version about where prior plausibility put it. I don’t think it’s likely either to even have that lower-but-not-entirely-negligible effect, and the practical upshot is identical, because the honest case for ventilation is comfort, bioeffluents, and sleep rather than IQ points (well, assuming that conventional wisdom remains right) – and whether indoor plants make us happy will also continue to hinge on non-CO2 things anyway.
...did you use an LLM to write this comment.
regardless, I simply updated to that I don’t need to worry about CO2 in most normal settings and I don’t have an opinion on whether it has a negligible effect at something like 2000ppm. Obviously at some point CO2 will have an effect on cognition just because an extremely high CO2 level (~40000ppm) is lethal.