the stream
4 parts
2026-07-15
The Laplacian Is the Shape of Disagreement
The operator behind image edges, heat flow, graph Fourier modes, and the question I want to ask next: when should context travel through a network?
#math#graphs#signal-processing#rust#exploration#diffusion#research#retrieval#experiment#hypergraphs explainerwriting
2026-07-09
Billion FizzBuzz
484 seconds down to ~1.2, in Rust. Along the way: a benchmark harness that was lying to me, an optimization that made things worse on purpose, and a wall neither more threads nor more code could move.
#rust#performance#benchmarking#fizzbuzz#systems writing
2026-07-08
Hailstones on a Mac Air
3n+1 through GMP, hand-rolled NEON, and a Metal GPU kernel on a MacBook Air. Two results ran opposite to what I predicted.
#rust#simd#gpu#collatz#performance#metal explainerdesignwriting