This journal keeps short pieces on four related subjects. Everything filed here is explanatory writing about how these games are structured and where they came from. Nothing here is guidance on play, on staking or on money.
Probability. The arithmetic that sits under a payout table: outcome counts, expected value per unit staked, independence between trials, and the very large denominators that draw games produce.
Table games. How a printed layout encodes a frequency table, how a fixed drawing rule works when nobody exercises a choice, and how a decision problem with a small state space can be written out in full.
Machine games. Reel construction and the mapping between virtual and physical stops, the meaning of the word random when it is applied to a deterministic recurrence, and why a uniform appearance need not imply a uniform distribution.
Game history. The long record of the objects themselves, from asymmetric bone pieces through the slow manufacturing argument that produced a fair cube, and the competitive changes that left two wheel layouts in circulation at once.
Entries are filed by month and by category, and every entry carries its own permanent link.