Point lookups are useful, but the operation you'll reach for more often is a range query: give the tree a rectangular region and retrieve every point inside it, without scanning the entire dataset.
Excuse me while I sit down after hearing Hayley Williams' frankly outrageous B5 note in string form. The Vitamin String Quartet cover of Paramore's 2009 hit from Brand New Eyes comes in a moment of deep yearning and I frankly can't handle it.
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