Quadtrees are everywhere spatial data exists. Mapping services use quadtree-like tile pyramids to serve map tiles at different zoom levels (Bing's quadkey system, for example, addresses tiles as base-4 paths). Game engines use them for collision detection and visibility culling. Geographic information systems use spatial indexes to store and query spatial datasets. PostGIS uses GiST indexes (R-tree-style) for spatial queries on geometries, while PostgreSQL's core supports quadtree-like SP-GiST indexes for certain data types like points.
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"It's a different environment than the 1960s. There's more than three channels on a TV, so capturing people's attention at times can be challenging," Isaacman said. "I have no doubt when Artemis II takes flight, the world will take notice to that."
09:14, 28 февраля 2026Мир
These features are similar to other AI-driven dating app features; in the last few years, as AI has taken over the tech space, it's also taken over The Apps. Hinge's Prompt Feedback, for instance, uses AI to encourage members to beef up their profiles, while Tinder's Photo Selector uses it to optimize one's photos, similar to Bumble's new AI Photo Feedback.