How we built Uber Engineering's highest query-per-second service using Go (2016)
This is a very inefficient implementation. Really, just poor quality work overall, as anyone with even a basic understanding of spatial indexing would know that an R-tree would be many times faster, as illustrated here: <a href="https://medium.com/@buckhx/unwinding-uber-s-most-efficient-service-406413c5871d" rel="nofollow">https://medium.com/@buckhx/unwinding-uber-s-most-efficient-s...</a>