The Tunnel Opens in Six Months
Created by Yoav Duman

Budget 50–60 minutes of active work at home.
https://yoavduman.com/lab/the-tunnel-opens-in-six-months
https://trouble-in-common.ishmaldon.chatgpt.site/simulations/the-tunnel-opens-in-six-months

You advise Marel, a lunar settlement negotiating access to a freight tunnel. Test who can stop a train under each agreement and decide what a new warning changes.
Choose For Class at the start. Enter your name and, if you wish, your class or section. Finish the responses and checks to open your report.

1. Make an opening recommendation. Read the freight agreement and identify one benefit or risk that matters to Marel.
2. Run both gate trials. Predict the outcome and watch the approval sequence. Record the first action that differs between the two trials.
3. Handle the alert and write the cabinet report. Make a recommendation using the first record, then compare it with the later record. Apply the same logic to the ferry and its relay tower.

Minimum words in For Class
- Opening reason · 15 words
- Alert reason · 20 words
- Tunnel memo · 35 words
- Alert memo · 45 words
- Ferry memo · 30 words

To pause or change devices, open Save & resume and download a JSON backup. Use the same activity and mode to restore it.
Choose Download Class PDF in your finished report. If needed, use Print or save as PDF. Open the PDF to check your name and responses, then upload it to Canvas.
