Which architectural feature was first developed and tested in Amazon's retail innovation lab before becoming standard in their Amazon Go stores?

In recent years, architectural innovation has transformed retail spaces from simple shopping venues into immersive brand experiences. Leading retailers invest millions in design innovation labs that blur the boundaries between physical and digital realms. This poll tests your knowledge of cutting-edge architectural developments in retail innovation labs that are reshaping how customers interact with physical store environments.

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Just Walk Out ceiling sensor grid architecture that eliminates traditional checkout
Modular wall systems that reconfigure overnight based on shopping patterns
Temperature-responsive architectural elements that adjust based on store occupancy
Augmented reality fitting rooms with interactive mirror walls