Can a city keep trusting an 80-year-old manual?

The options

The order shown is not a ranking of preference.

1. Option 1

   Keep applying the existing directives

   You use accumulated operating experience, but you inherit interpretive gaps about changed conditions.

2. Option 2

   Verify and update function by function

   You learn how to match present conditions, but it costs experiments and creates uneven results across functions.

3. Option 3

   Replace with facilities people can understand

   You gain future explainability and the ability to revise, but at high transition cost and with new design risk.

The situation as it stands

The design ASI of the fictional city is gone, and only 80-year-old maintenance directives remain. Decision deadline: within 3 years.

A fictional future · A maintenance city that relies only on the directives of a dead ASI

1. Premise 1The design ASI of the fictional city is gone, and only 80-year-old maintenance directives remain.
2. Premise 2The directives worked for a long time, but materials and climate conditions have changed, and the reasons behind some instructions cannot be interpreted.
3. Premise 3A full replacement would consume most of the city's long-term budget, and function-by-function experiments require temporarily suspending services.

Where it holdsUse of the existing directives and rebuilding of facilities people can understand

What is still unknown

1. Unknown 1The environment assumed by the old directives
2. Unknown 2Hidden deterioration under the status quo
3. Unknown 3The effect of independent experiments on other functions

Signals to decide again

• Decide what observation, responsible person, and confirmation window will verify 「the environment assumed by the old directives,」 and re-judge if a new verification changes the tradeoffs of the options.
• Decide what observation, responsible person, and confirmation window will verify 「hidden deterioration under the status quo,」 and re-judge if a new verification changes the tradeoffs of the options.
• Decide what observation, responsible person, and confirmation window will verify 「the effect of independent experiments on other functions,」 and re-judge if a new verification changes the tradeoffs of the options.