AI/ML●●Solid
Writing a deep-research agent from scratch
Real talk on the 'secret final boss' of building agents: the hostile web.
Big BrainShip It
freakynit
101mo ago
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The nearest hospital to every place on Earth in a single S2 range query
by abahgat·Jun 2, 2026·2 points·0 comments
AI Analysis
●●SolidBig BrainRabbit Hole
Turns quadratic spatial joins into linear integer range checks via Hilbert curve ordering.
Strengths
- •Collapses apparently quadratic point-in-polygon problem into nearly linear complexity
- •Real Google production experience backing the technique with hospital use case
- •Explains why contiguous S2 cells become contiguous integer intervals
Weaknesses
- •Educational blog post, not a shipped tool or library others can use
- •S2 geometry already documented by Google, this is explanation not innovation
Category
Target Audience
Backend engineers, data engineers working with geospatial data
Similar To
Google S2 Geometry Library · Uber H3 · PostGIS
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