MENTAL MODEL · M9341

Parallel Development

SystemsmediumSystems Theory

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Updated 2026-08-10

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INTRODUCTION

English translation pending.

CORE DEFINITION

Parallel development draws on the classical image of two horses pulling a chariot at the same speed and is expressed through related ideas such as running in parallel without contradiction, backing each other up, and iterating several versions at once. The core proposition is that many goals are complements rather than substitutes, so treating them as an either-or choice starves one side and eventually stalls the whole. The key qualification is that matched pace means relative balance, not rigid equality: the aim is to keep every necessary line above its minimum threshold rather than to advance all lines by identical amounts.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

- Name Both Lines: state explicitly which two capabilities must advance together for the goal to hold. - Set Separate Rhythms: give each line its own review cadence so neither silently stalls. - Watch The Lagging Line: treat the slower line as the binding constraint and rebalance effort toward it.

anchor

Anchor fast decisions

Systems fail at their weakest necessary component, so pouring resources into an already strong line yields diminishing returns while the neglected line becomes the ceiling. Keeping lines in step means no single component becomes the limit and no capability is wasted waiting for a counterpart. Parallel bets also hedge uncertainty: when the environment is ambiguous, several simultaneous paths raise the chance that one fits.

MINIMUM ACTION

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Practice this model in one real situation:

Identify which capabilities are complementary rather than substitutable. 2. Set a minimum acceptable level for each instead of a single headline target. 3. Review all lines on the same cadence and compare their progress. 4. Shift resources toward whichever line is furthest below its threshold. 5. Stop advancing a line once it is no longer the constraint.

Check to track your progress (stored locally)

Learning progress0%

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Source support: Explicit

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zh.wikisource.orghttps://zh.wikisource.org/wiki/%E6%96%87%E5%BF%83%E9%9B%95%E9%BE%8D/%E9%99%84%E6%9C%83ZH · Explicit
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