What did the SIREN AI activity index do each month?

One page per month with quotable findings and a permanent URL. Built from the public reading log; free to cite under CC BY 4.0.

• October 2026 (month to date) — averaged 53.0 of 100 across 1042 readings
• September 2026 — averaged 44.0 of 100 across 142 readings

SIREN measures how much is happening, not how bad it is. Levels run from 5 (quietest) to 1 (loudest) and describe observable activity tempo against this index’s own record. They are not a probability of harm.