Blog

The Kelly Criterion

November 6, 2025 · Updated February 10, 2026
A summary of the Kelly Criterion and the optimal sizing of bets for maximal expected logarithmic returns.

An Even Split in Probability

August 24, 2024 · Updated February 10, 2026
A generalisation of Q18 from 50 Challenging Problems in Probability.

Fermat's Little Theorem

August 2, 2024 · Updated February 10, 2026
A cute little trick to solving Fermat’s Little Theorem.