12–16 December 2025
Propensity has always been available for free with KindleUnlimited. For the first time ever, Propensity will be free for all available markets between 12 and 16 December 2025. Limited-time offer. Not sure how this operates across time zones. Download it sooner than later so you don’t miss the opportunity.
Propensity is also available in hardcover and paperback, as well as an audiobook. Scroll down to listen to chapter 1.
Also available at Barnes & Noble, if that’s your preference – hardcover and paperback.
Summaries and a trailer are available below.
I’m offering Propensity in the hope of getting some reviews and comments, whether here or on the site of purchase. Goodreads reviews are nice, too. You can be the first.
Propensity is a story in three sections: Implementation, Drift, and Entropic. Google Gemini summarised each section; NotebookLM summarised those. Listen below.
A thematic trailer for Section I is also available. I hope to make more.
Have any more questions? Visit the dedicated product page.
I feel I’ve stuffed this page, so it’s time to go.
Ridley Park 