Bulkheads on paper first

YAML diff reviews hide human roles. We print layered architecture sheets and ask teams to draw bulkheads with thick markers. The physical act reveals fantasy boundaries—lines that look neat digitally but imply shared thread pools in reality. Once inked, we overlay degradation paths with color. User-visible impact gets a bold hue; internal-only issues stay faint. That contrast keeps incident comms empathetic instead of technical-only. The Resilience Rehearsal Studio course extends this with timed tabletop outages and retro templates tuned for regional SaaS teams. Nothing here replaces your internal approval workflows—it gives vocabulary before those workflows engage.