Is a ‘selfish gene’ making a Utah family have twice as many boys as girls?

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But its age verification plan, which would have required either a facial, photo or government ID scan to confirm the claimed age of users, drew near-instant ire from Discord's community.

A quadtree does the same thing for two-dimensional space. It takes a rectangular region and divides it into four equal quadrants: northwest, northeast, southwest, southeast. If a quadrant has too many points in it, it subdivides again and again. Each subdivision creates smaller and smaller cells where points are densely packed.

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