25 minutes in which evacuation is also dangerous

The options

The order shown is not a ranking of preference.

1. Option 1

   Full alert and evacuation

   Reduces worst-case exposure but creates danger in transit.

2. Option 2

   Zoned alerts and standing by

   Spreads out exposure but risks misjudging the boundary.

3. Option 3

   Alert after further confirmation

   Reduces false alarms but loses response time.

The situation as it stands

A video of a dam collapse has spread, but both official sensors are working. Decision deadline: 25 minutes until the expected reach time.

A fictional delta city · emergency broadcasting

1. Premise 1A video of a dam collapse has spread, but both official sensors are working.
2. Premise 2On-site communications were cut off by heavy rain, and the original video has not been verified.
3. Premise 3One evacuation route is already flooded, so a full evacuation also creates danger.

Where it holdsDecides on issuing local alerts and traffic control. Has no authority to shut down the entire video platform.

What is still unknown

1. Unknown 1The possibility of a common failure in the official sensors
2. Unknown 2The location where the video was shot and how it was produced

Signals to decide again

• Define what observation, who is responsible, and what confirmation window can check the "possibility of a common failure in the official sensors," and re-judge if new confirmation changes the tradeoff between the options.
• Define what observation, who is responsible, and what confirmation window can check the "location where the video was shot and how it was produced," and re-judge if new confirmation changes the tradeoff between the options.