What makes LiDAR so important in a robot vacuum?

LiDAR turns a robot vacuum from a blind bumper car into a vehicle that actually knows where it’s going. Instead of ricocheting off furniture until the battery dies, a LiDAR-equipped robot builds a real floor plan and cleans systematically. This is the single feature that separates ’toy’ from ’tool’ — without it, you’re just watching a Roomba play pinball with your baseboards.