I Made Zig Compute 33 Million Satellite Positions in 3 Seconds. No GPU Required

A developer created astroz, the fastest general-purpose SGP4 satellite tracking implementation, achieving 11-13 million satellite position calculations per second using Zig's SIMD capabilities without requiring GPU acceleration. The breakthrough came from branchless code design, compile-time optimizations, and clever SIMD programming that processes multiple satellites or time points simultaneously, making it 2-3 times faster than existing Python implementations.