Nighttime Ventilation Survey Results

Results of Scott's reader survey on altering nighttime CO2 (129 respondents). Most slept with a window open; average self-rated improvement was a slight 1.4/5. The 'ten-plus-succulents' group (a crypto-placebo check) failed to separate from others (1.29 vs 1.50, n.s.); window-openers edged others (1.57 vs 1.31, n.s., possibly via a cooler room). A few dramatic improvement reports, many placebo-like. Honest conclusion: 'basically negative' both for nighttime ventilation and for informal blog surveys yielding confident data.

Quality 54 · Solid. A short, honest informal-survey writeup with null-ish results and good placebo-awareness, but minor in scope and inconclusive. Solid-low.

Claude’s paradigm shift 34 · Slight. A small survey-data writeup; little novelty. Slight.

Real-world impact 2 · Minor. A within-community data post; no material-world effect. Within-blog influence.