# The three rules of mountaineering and amodal volume completion

## TL;DR

This paper explains how misjudging mountain height can be due to a perceptual phenomenon called amodal volume completion.

## Contribution

It introduces a novel explanation for height misjudgment using amodal volume completion.

## Key findings

- Height misjudgment can be explained by amodal volume completion.
- Perceptual experiences influence our estimation of mountain height.

## Abstract

When climbing a mountain, one is sometimes surprised at how the mountain turns out to be much taller than one initially believed. Wishful thinking easily comes to mind as an explanation for this, but we illustrate how this misjudgment may also be explained as a consequence of the perceptual experience of amodal volume completion.