Long-form writing on cryptography, payments, mathematics, and the systems humming underneath everyday technology.
How a thirty-gigabyte AI model gets rounded down to fit on a laptop — scale and zero-point, calibration, granularity, integer-only inference, QAT, and the outlier problem that forced large language models to invent new tricks.
A walkthrough of what actually happens inside your iPhone when you add a card to Wallet and when you pay — the Secure Element, the Secure Enclave, tokenization, cryptograms, and the minimal code you need to write.
Public-key encryption explained through Romeo, Juliet, and a little Harry Potter — then the actual RSA math: totients, congruent mods, key generation, and why quantum computers are coming for all of it.