From Structure to Signal
The Tesfa Grid began as a study of the hidden structure beneath the primes. The same idea — that apparent randomness carries a readable structure — points at another noisy sequence: the price of markets. A plain-language look at TGSS, the applied outcome: what it reads, how it trades in and out with discipline, and why its performance is measured out-of-sample. Read →
What Post-Quantum Cryptography Means
In June 2026 the United States set legal deadlines to replace the encryption that protects nearly all digital communication. The reason is a piece of number theory. A plain-language explainer of the quantum threat, "harvest now, decrypt later," the new US mandate, and the standards replacing RSA and ECC. Read →
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