Cannot Have Both
Updated 2026-08-10
INTRODUCTION
English translation pending.
CORE DEFINITION
The recognition that certain goals or options stand in fundamental conflict and cannot be obtained simultaneously, so a choice must be made. Its core proposition is that many values trade off because resources are limited or the objectives are intrinsically opposed, such as safety against convenience, and that insisting on having both usually produces hidden costs. The qualifier is that the trade-off must be accepted explicitly rather than dissolved into vague language.
SCAFFOLDING EFFECT
Reduce cognitive load
- Conflict identification: name the two objectives that genuinely cannot both be maximized. - Priority weighting: decide which one matters more under the current circumstances. - Cost acceptance: choose one deliberately and name the sacrifice you are accepting rather than hiding it.
Anchor fast decisions
When two objectives draw on the same limited resource or pull the design in opposite directions, improving one necessarily degrades the other. Pretending otherwise moves the trade-off from a visible decision into an unmanaged one, where the sacrifice happens anyway but without anyone having chosen it or accounted for it.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
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Source support: Explicit
- zh.wikisource.orghttps://zh.wikisource.org/wiki/%E6%A2%81%E6%9B%B8/%E5%8D%B743verified
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