Spencer Potter
Member, San Francisco Urban Forestry CouncilWe identified Potter’s voice at three meetings.
Every roll call, and Potter’s other bodies
Present at 1 of 1 roll calls at the Urban Forestry Council, roll call through Jan 23, 2026
- Urban Forestry Council: talk time not compared. Seated for only 6 meetings in 12 months.
Every meeting where we identified Potter’s voice
- May 22, 2026Urban Forestry Council3.7 min1:28:40
- Mar 27, 2026Urban Forestry Council2.1 min1:25:40
- Jan 23, 2026Urban Forestry Council2.8 min20:31
How we identify who is speaking · blind check, pooled across five cities: of 340 commission lines drawn, 260 right, 4 wrong, 1 unclear, 75 couldn’t be judged
A meeting missing here means we couldn’t attribute the voice, not that Potter was absent. Claude and Gemini each read every transcript with that day’s roster. A voice gets Spencer Potter’s name only when both agree and a code check finds the name said on, or just before, their turn. Voices our transcripts merge with someone else’s are never attributed, so every count here undercounts what Potter said. For commissions, of 340 lines drawn, 260 were right, 4 wrong and 1 unclear, and the checkers couldn’t judge 75. We have since removed the voices behind 64 of those lines (3 wrong, 0 unclear, the rest we had already held for other reasons). Of the 276 lines we still publish, the checkers could judge 228: 226 right, 1 wrong and 1 unclear (90% lower bound 0.97). They couldn’t judge the other 48. The check is one sample pooled across the five cities, not of Potter or of San Francisco alone.