Thought Experiment / Gedankenexperiment

CORE DEFINITION

A thought experiment, or Gedankenexperiment, constructs an idealized situation in imagination and reasons through its consequences in order to test a concept, expose an inconsistency or derive a conclusion. The core proposition is that when an actual experiment is impossible, too costly or too slow, logical simulation can still interrogate the idea, which makes the technique useful for questions about bankruptcy, career choices or physical limits. The key qualification is that the technique rests entirely on the clarity of its premises, so a scenario that smuggles in a hidden assumption produces a conclusion that looks derived but is merely assumed.