What is carpentered world hypothesis?

Answer 1

people in urban environment and developed countries are more susceptible to the miller-lyer illusions because of their experience with right angles.

Answer 2

The carpentered world hypothesis is a theory in cognitive psychology that suggests that people from cultures with predominantly rectangular, carpentered environments (such as urban settings with straight buildings and streets) are more prone to optical illusions that involve 2D images appearing distorted in 3D space. This is because their perceptual systems have become attuned to interpreting rectangular shapes and angles as indicative of depth and distance. However, this hypothesis has been met with some controversy and is not universally accepted.