Edition · Sunday, 17 May 2026
What happened, the forces beneath it, why it matters — then your turn.
01 · Briefing · what happened
World news briefing
## Wars and military **Tensions escalate in the Middle East.** A drone strike hit the UAE's nuclear power facility, sparking a fire and marking the latest escalation in Iran tensions [2]. This incident comes after a period of strained relat…
Read the full briefing
02 · Lesson · why it matters
Why Stores Close Their Doors While Customers Wait Outside
When demand spikes beyond what queues and store floors can handle, retailers face hard capacity limits. Why closing doors protects staff, shifts demand to controllable channels, and makes scarcity legible.
Read the lesson
03 · Lab · your turn
Queue Versus Capacity Collapse
When demand arrives faster than a fixed-capacity system can process it, the queue either stabilizes if arrivals slow below throughput or collapses into chaos if the backlog grows faster than the system clears it, forcing closure to reset flow.
Rehearse the decision