Fabio Concina Writing and projects https://fabioconcina.com/ 2026-06-11T00:00:00Z Fabio Concina Forecasting rate limits in claumon https://fabioconcina.com/projects/claumon/ 2026-06-03T00:00:00Z 2026-06-11T00:00:00Z How claumon forecasts Claude Code rate limits: utilization at reset and ETA to a threshold, with an 80% credible interval from a monotone, bounded model. Twice in Three Years: Two AI Phase Shifts https://fabioconcina.com/blog/twice-in-three-years-two-ai-phase-shifts/ 2026-02-01T00:00:00Z 2026-05-31T00:00:00Z Two moments three years apart - ChatGPT in 2022, Claude Code in 2025. First the machine learned to understand us; then it learned to act for us.