Google uses a hypothetical interview question about a shrunk human in a blender to evaluate how candidates apply physics to unconventional problems.

The exercise serves as a benchmark for a candidate's ability to think critically under pressure. By moving beyond standard technical questions, the company can assess whether an applicant can apply fundamental scientific principles to a scenario they have never encountered before.

The specific question asks what would happen if a person were shrunk to the size of a nickel and then placed inside a blender [1]. This thought experiment requires the candidate to consider the relationship between mass, surface area, and the mechanics of a blender's blades.

Reports said almost everyone who answers the question does so incorrectly [1]. Many candidates fail to account for the physics of scaling, which would dictate the outcome of the scenario.

Physics suggests that a person shrunk to such a small size would be shredded almost instantly [1]. The reasoning involves the speed of the blades and the lack of air resistance or structural integrity that a full-sized human possesses relative to the blender's environment.

Google employs these types of brain-teasers to identify individuals who can navigate complex, non-linear problems [1]. The goal is not necessarily to find a correct answer, but to observe the logical process the candidate uses to reach their conclusion.

Google uses a hypothetical interview question about a shrunk human in a blender

The use of unconventional brain-teasers reflects a hiring philosophy that prioritizes cognitive flexibility and first-principles thinking over rote memorization. By testing a candidate's ability to apply physics to an absurd scenario, the company attempts to predict how an employee will handle novel technical challenges where no established manual or precedent exists.